diff --git a/apps/as/src/pages/esntl-atch-file-mng/ui/esntl-atch-file-form-dialog.tsx b/apps/as/src/pages/esntl-atch-file-mng/ui/esntl-atch-file-form-dialog.tsx
index 710d6c93d..c7c63ffed 100644
--- a/apps/as/src/pages/esntl-atch-file-mng/ui/esntl-atch-file-form-dialog.tsx
+++ b/apps/as/src/pages/esntl-atch-file-mng/ui/esntl-atch-file-form-dialog.tsx
@@ -5,7 +5,7 @@ import { useForm } from "react-hook-form";
 
 import { getDefaultFileKey, useTus } from "@/shared/lib";
 import { AttachmentFileField } from "@/shared/ui";
-import { attachService } from "@/entities/attach";
+import { attachService, useDownloadAttachmentByAtflId } from "@/entities/attach";
 import { CodeSelect } from "@/entities/code";
 import type { EsntlAtchFileMng } from "@/entities/esntl";
 import {
@@ -61,6 +61,7 @@ function EsntlAtchFileFormDialog({
   const formId = useId();
   const atchFileGroupIdRef = useRef("");
   const [uploadedFiles, setUploadedFiles] = useState<UploadedTemplateFile[]>([]);
+  const { mutate: downloadByAtflId } = useDownloadAttachmentByAtflId();
 
   const { register, handleSubmit, reset, setValue, watch } = useForm<EsntlAtchFileFormValues>({
     defaultValues: {
@@ -219,6 +220,9 @@ function EsntlAtchFileFormDialog({
               files={uploadedFiles.map((item) => ({
                 fileKey: item.fileKey,
                 fileName: item.fileName,
+                onDownload: item.atflId
+                  ? () => downloadByAtflId(item.atflId!)
+                  : undefined,
               }))}
               inputId={fileInputId}
               isUploadingByKey={isUploading}
diff --git a/apps/as/src/pages/fnrs-cnsltn/ui/components/floating-action-buttons.tsx b/apps/as/src/pages/fnrs-cnsltn/ui/components/floating-action-buttons.tsx
index 2c32522cc..5d6d58371 100644
--- a/apps/as/src/pages/fnrs-cnsltn/ui/components/floating-action-buttons.tsx
+++ b/apps/as/src/pages/fnrs-cnsltn/ui/components/floating-action-buttons.tsx
@@ -597,7 +597,7 @@ function FloatingActionButtons({
                 </Button>
               )}
               {shouldShowButton(FNRS_CNSLTN_VIEW_BUTTON_ACTION.sncnAprv) && (
-                <Button onClick={handleSncnAprvClick} disabled={isProcessing}>
+                <Button color="green" onClick={handleSncnAprvClick} disabled={isProcessing}>
                   결과 회신
                 </Button>
               )}
diff --git a/apps/as/src/pages/fnrs-cnsltn/ui/components/pwrk-cnsltn-doc-mng-dialog.tsx b/apps/as/src/pages/fnrs-cnsltn/ui/components/pwrk-cnsltn-doc-mng-dialog.tsx
index a740f7356..97a7a9e9f 100644
--- a/apps/as/src/pages/fnrs-cnsltn/ui/components/pwrk-cnsltn-doc-mng-dialog.tsx
+++ b/apps/as/src/pages/fnrs-cnsltn/ui/components/pwrk-cnsltn-doc-mng-dialog.tsx
@@ -8,7 +8,7 @@ import { PanelRightClose, PanelRightOpen } from "lucide-react";
 
 import { getDefaultFileKey, useAlertStore, useTus } from "@/shared/lib";
 import { AttachmentFileField } from "@/shared/ui";
-import { attachService, parseFilenameFromResponse } from "@/entities/attach";
+import { attachService, parseFilenameFromResponse, useDownloadAttachmentByAtflId } from "@/entities/attach";
 import {
   pwrkCnsltnDocCrtRsltSaveRequestSchema,
   pwrkCnsltnDocCrtRsltService,
@@ -78,6 +78,7 @@ function PwrkCnsltnDocMngDialog({
   const [atchFileGroupId, setAtchFileGroupId] = useState("");
   const [uploadedFiles, setUploadedFiles] = useState<UploadedAtchFile[]>([]);
   const [isPjtcoAjmtTableOpen, setIsPjtcoAjmtTableOpen] = useState(false);
+  const { mutate: downloadByAtflId } = useDownloadAttachmentByAtflId();
 
   const {
     data: pwrkCnsltnData,
@@ -344,6 +345,9 @@ function PwrkCnsltnDocMngDialog({
               files={uploadedFiles.map((item) => ({
                 fileKey: item.fileKey,
                 fileName: item.fileName,
+                onDownload: item.atflId
+                  ? () => downloadByAtflId(item.atflId!)
+                  : undefined,
               }))}
               inputId="pwrk-cnsltn-doc-atch-file-input"
               isUploadingByKey={isUploading}
diff --git a/apps/as/src/pages/fnrs-cnsltn/ui/fnrs-form-page.tsx b/apps/as/src/pages/fnrs-cnsltn/ui/fnrs-form-page.tsx
index 632c51e3b..cac88ea86 100644
--- a/apps/as/src/pages/fnrs-cnsltn/ui/fnrs-form-page.tsx
+++ b/apps/as/src/pages/fnrs-cnsltn/ui/fnrs-form-page.tsx
@@ -332,24 +332,26 @@ function FnrsFormPage({ mode, initialData, createDefaults }: FnrsFormPageProps)
                     )}
                   </>
                 ) : (
-                  <Button
-                    type="button"
-                    onClick={form.handleSubmit(onSplmntCmptn)}
-                    disabled={isSubmitting}
-                  >
-                    보완 완료
-                  </Button>
+                  <>
+                    {fnrsCnsltnDocNo ? (
+                      <Button
+                        color="orange"
+                        type="button"
+                        onClick={() => setIsPwrkCnsltnDocMngOpen(true)}
+                        disabled={isSubmitting}
+                      >
+                        실무협의서 관리
+                      </Button>
+                    ) : null}
+                    <Button
+                      type="button"
+                      onClick={form.handleSubmit(onSplmntCmptn)}
+                      disabled={isSubmitting}
+                    >
+                      보완 완료
+                    </Button>
+                  </>
                 )}
-                {isSplmntPrgrsStts && fnrsCnsltnDocNo ? (
-                  <Button
-                    color="orange"
-                    type="button"
-                    onClick={() => setIsPwrkCnsltnDocMngOpen(true)}
-                    disabled={isSubmitting}
-                  >
-                    실무협의서 관리
-                  </Button>
-                ) : null}
               </div>
             </div>
           </div>
diff --git a/apps/as/src/pages/fnrs-cnsltn/ui/sections/tech-review-opinion-section.tsx b/apps/as/src/pages/fnrs-cnsltn/ui/sections/tech-review-opinion-section.tsx
index a4c41d527..b00dfce22 100644
--- a/apps/as/src/pages/fnrs-cnsltn/ui/sections/tech-review-opinion-section.tsx
+++ b/apps/as/src/pages/fnrs-cnsltn/ui/sections/tech-review-opinion-section.tsx
@@ -5,7 +5,11 @@ import { forwardRef, useEffect, useImperativeHandle, useState } from "react";
 import { dayjs, getDefaultFileKey, useTus } from "@/shared/lib";
 import { AttachmentFileField, SectionCollapsible } from "@/shared/ui";
 import { Field, FieldLabel, FieldSet } from "@/shared/ui/field";
-import { AttachmentDownloadLink, attachService } from "@/entities/attach";
+import {
+  AttachmentDownloadLink,
+  attachService,
+  useDownloadAttachmentByAtflId,
+} from "@/entities/attach";
 import type { FnrsCnsltnRvwOpnnResponseDto } from "@/entities/fnrs-cnsltn";
 import {
   RadioGroup,
@@ -79,6 +83,7 @@ const TechReviewOpinionSection = forwardRef<
     opnrSeComCd: editableReviewStep ?? "",
   });
   const [uploadedFile, setUploadedFile] = useState<UploadedOpinionFile | null>(null);
+  const { mutate: downloadByAtflId } = useDownloadAttachmentByAtflId();
 
   useEffect(() => {
     setFormData((prev) => ({
@@ -243,7 +248,15 @@ const TechReviewOpinionSection = forwardRef<
                 <AttachmentFileField
                   files={
                     uploadedFile
-                      ? [{ fileKey: uploadedFile.fileKey, fileName: uploadedFile.fileName }]
+                      ? [
+                          {
+                            fileKey: uploadedFile.fileKey,
+                            fileName: uploadedFile.fileName,
+                            onDownload: uploadedFile.atflId
+                              ? () => downloadByAtflId(uploadedFile.atflId!)
+                              : undefined,
+                          },
+                        ]
                       : []
                   }
                   inputId={`rvw-opnn-${reviewStep}-file-input`}
diff --git a/apps/as/src/shared/ui/attachment-file-field.tsx b/apps/as/src/shared/ui/attachment-file-field.tsx
index 6867a8323..8eac0dce6 100644
--- a/apps/as/src/shared/ui/attachment-file-field.tsx
+++ b/apps/as/src/shared/ui/attachment-file-field.tsx
@@ -6,6 +6,7 @@ import { UploadedFileChip } from "./uploaded-file-chip";
 interface AttachmentFileFieldItem {
   fileKey: string;
   fileName: string;
+  onDownload?: () => void;
 }
 
 interface AttachmentFileFieldProps {
@@ -41,6 +42,7 @@ function AttachmentFileField({
               fileName={file.fileName}
               isUploading={isUploadingByKey[file.fileKey] ?? false}
               onRemove={onRemove ? () => onRemove(index) : undefined}
+              onDownload={file.onDownload}
             />
           ))}
         </div>
diff --git a/apps/as/src/shared/ui/uploaded-file-chip.tsx b/apps/as/src/shared/ui/uploaded-file-chip.tsx
index 82be5d581..2fb4b437a 100644
--- a/apps/as/src/shared/ui/uploaded-file-chip.tsx
+++ b/apps/as/src/shared/ui/uploaded-file-chip.tsx
@@ -8,15 +8,36 @@ interface UploadedFileChipProps {
   fileName: string;
   isUploading?: boolean;
   onRemove?: () => void;
+  onDownload?: () => void;
 }
 
-function UploadedFileChip({ fileName, isUploading = false, onRemove }: UploadedFileChipProps) {
+function UploadedFileChip({
+  fileName,
+  isUploading = false,
+  onRemove,
+  onDownload,
+}: UploadedFileChipProps) {
+  const canDownload = Boolean(onDownload) && !isUploading;
+
   return (
     <div className="inline-flex items-center justify-between gap-2 rounded-sm border bg-accent px-3 py-2">
       <Paperclip className="size-5 shrink-0" />
-      <TextShimmer className="text-xl" active={isUploading}>
-        {fileName}
-      </TextShimmer>
+      {canDownload ? (
+        <button
+          type="button"
+          className="cursor-pointer text-left hover:underline"
+          aria-label={`${fileName} 다운로드`}
+          onClick={onDownload}
+        >
+          <TextShimmer className="text-xl" active={isUploading}>
+            {fileName}
+          </TextShimmer>
+        </button>
+      ) : (
+        <TextShimmer className="text-xl" active={isUploading}>
+          {fileName}
+        </TextShimmer>
+      )}
       {onRemove ? (
         <button
           type="button"
diff --git a/apps/as/src/widgets/pbadms-sprt/ui/attachments-form-section.tsx b/apps/as/src/widgets/pbadms-sprt/ui/attachments-form-section.tsx
index d3507d8ba..987c1d6ab 100644
--- a/apps/as/src/widgets/pbadms-sprt/ui/attachments-form-section.tsx
+++ b/apps/as/src/widgets/pbadms-sprt/ui/attachments-form-section.tsx
@@ -15,7 +15,7 @@ import {
   SectionCollapsible,
   UploadedFileChip,
 } from "@/shared/ui";
-import { attachService, useDownloadAttachmentByAtflCd } from "@/entities/attach";
+import { attachService, useDownloadAttachmentByAtflCd, useDownloadAttachmentByAtflId } from "@/entities/attach";
 import { useEsntlAtchFileMngTree } from "@/entities/esntl";
 import {
   Button,
@@ -217,6 +217,7 @@ function AttachmentsFormSection({
     { docSeComCd },
   );
   const { mutate: downloadTemplate } = useDownloadAttachmentByAtflCd();
+  const { mutate: downloadByAtflId } = useDownloadAttachmentByAtflId();
 
   async function invalidateAttachmentQueries() {
     await queryClient.invalidateQueries({
@@ -431,6 +432,9 @@ function AttachmentsFormSection({
                               files={(uploadedFiles[file.esntlAtchFileId] ?? []).map((item) => ({
                                 fileKey: item.fileKey,
                                 fileName: item.file?.name ?? item.fileName,
+                                onDownload: item.atflId
+                                  ? () => downloadByAtflId(item.atflId!)
+                                  : undefined,
                               }))}
                               inputId={`${file.esntlAtchFileId}-file-input`}
                               isUploadingByKey={isUploading}
@@ -470,6 +474,9 @@ function AttachmentsFormSection({
                     fileName={item.file?.name ?? item.fileName}
                     isUploading={isUploading[item.fileKey] ?? false}
                     onRemove={() => void removeEtcFile(idx)}
+                    onDownload={
+                      item.atflId ? () => downloadByAtflId(item.atflId!) : undefined
+                    }
                   />
                 ))}
               </div>
diff --git a/apps/as/src/widgets/pbadms-sprt/ui/splmnt-dmnd-dialog.tsx b/apps/as/src/widgets/pbadms-sprt/ui/splmnt-dmnd-dialog.tsx
index 2e225a286..8e1facf38 100644
--- a/apps/as/src/widgets/pbadms-sprt/ui/splmnt-dmnd-dialog.tsx
+++ b/apps/as/src/widgets/pbadms-sprt/ui/splmnt-dmnd-dialog.tsx
@@ -4,7 +4,7 @@ import { useEffect, useId, useState } from "react";
 
 import { getDefaultFileKey, useTus } from "@/shared/lib";
 import { AttachmentFileField } from "@/shared/ui";
-import { attachService } from "@/entities/attach";
+import { attachService, useDownloadAttachmentByAtflId } from "@/entities/attach";
 import { CodeSelect } from "@/entities/code";
 import {
   Button,
@@ -96,6 +96,7 @@ function SplmntDmndDialog({
 }: SplmntDmndDialogProps) {
   const formId = useId();
   const [rows, setRows] = useState<SplmntDmndRow[]>([createEmptyRow()]);
+  const { mutate: downloadByAtflId } = useDownloadAttachmentByAtflId();
 
   const { uploadFileAsync, isUploading, uploads } = useTus({
     onSuccess: (atflCd, atflId, _file, fileKey) => {
@@ -289,6 +290,9 @@ function SplmntDmndDialog({
                           files={row.uploadedFiles.map((file) => ({
                             fileKey: file.fileKey,
                             fileName: file.fileName,
+                            onDownload: file.atflId
+                              ? () => downloadByAtflId(file.atflId!)
+                              : undefined,
                           }))}
                           inputId={fileInputId}
                           isUploadingByKey={isUploading}
diff --git a/apps/as/src/widgets/pbadms-sprt/ui/splmnt-dmnd-form-section.tsx b/apps/as/src/widgets/pbadms-sprt/ui/splmnt-dmnd-form-section.tsx
index 348cfe52e..8fdbec031 100644
--- a/apps/as/src/widgets/pbadms-sprt/ui/splmnt-dmnd-form-section.tsx
+++ b/apps/as/src/widgets/pbadms-sprt/ui/splmnt-dmnd-form-section.tsx
@@ -5,7 +5,7 @@ import { Controller, useFormContext, useWatch } from "react-hook-form";
 
 import { dayjs, getDefaultFileKey, useTus } from "@/shared/lib";
 import { AttachmentFileField, SectionCollapsible } from "@/shared/ui";
-import { AttachmentDownloadLink, attachService } from "@/entities/attach";
+import { AttachmentDownloadLink, attachService, useDownloadAttachmentByAtflId } from "@/entities/attach";
 import {
   Badge,
   Table,
@@ -73,6 +73,7 @@ function SplmntDmndFormSection({ readOnly = false }: SplmntDmndFormSectionProps)
   const initialFilesMappedRef = useRef(false);
   const isMountedRef = useRef(true);
   const atflCdByRowRef = useRef<Record<string, string>>({});
+  const { mutate: downloadByAtflId } = useDownloadAttachmentByAtflId();
 
   const { uploadFileAsync, isUploading, uploads } = useTus({
     onSuccess: (atflCd, atflId, _file, fileKey) => {
@@ -306,6 +307,9 @@ function SplmntDmndFormSection({ readOnly = false }: SplmntDmndFormSectionProps)
                         files={rowFiles.map((file) => ({
                           fileKey: file.fileKey,
                           fileName: file.fileName,
+                          onDownload: file.atflId
+                            ? () => downloadByAtflId(file.atflId!)
+                            : undefined,
                         }))}
                         inputId={fileInputId}
                         isUploadingByKey={isUploading}