diff --git a/apps/as/app/(with-base-layout)/instl-sncn/regist/page.tsx b/apps/as/app/(with-base-layout)/instl-sncn/regist/page.tsx
index b19f7abb6..476d0b7c2 100644
--- a/apps/as/app/(with-base-layout)/instl-sncn/regist/page.tsx
+++ b/apps/as/app/(with-base-layout)/instl-sncn/regist/page.tsx
@@ -1,3 +1,14 @@
 import { InstlRegistPage } from "@/pages/instl-sncn";
 
-export default InstlRegistPage;
+interface InstlSncnRegistRouteProps {
+  searchParams: Promise<{ taskSeComCd?: string }>;
+}
+
+export default async function Page({ searchParams }: InstlSncnRegistRouteProps) {
+  const params = await searchParams;
+  const taskSeComCd = params.taskSeComCd
+    ? params.taskSeComCd.split(",").filter(Boolean)
+    : undefined;
+
+  return <InstlRegistPage taskSeComCd={taskSeComCd} />;
+}
diff --git a/apps/as/src/pages/instl-sncn/lib/form-data-mapper.ts b/apps/as/src/pages/instl-sncn/lib/form-data-mapper.ts
index 6110d7be7..777229093 100644
--- a/apps/as/src/pages/instl-sncn/lib/form-data-mapper.ts
+++ b/apps/as/src/pages/instl-sncn/lib/form-data-mapper.ts
@@ -89,14 +89,17 @@ export function mapDetailToFormData(data: InstlSncnMngDetResponse): CnfmRegistFo
   };
 }
 
-export function getCreateDefaultValues(userInfo: IUserInfo | null): CnfmRegistFormData {
+export function getCreateDefaultValues(
+  userInfo: IUserInfo | null,
+  taskSeComCd?: string[],
+): CnfmRegistFormData {
   return {
     instlSncnMng: {
       bizNm: "",
       bizBgngYr: "",
       bizEndYr: "",
       bizCn: "",
-      taskSeComCd: [],
+      taskSeComCd: taskSeComCd ?? [],
       sncnSeComCd: "",
       dsgnrNm: "",
       dsgnrTelno: "",
diff --git a/apps/as/src/pages/instl-sncn/ui/components/task-se-picker-dialog.tsx b/apps/as/src/pages/instl-sncn/ui/components/task-se-picker-dialog.tsx
new file mode 100644
index 000000000..b1a4fd135
--- /dev/null
+++ b/apps/as/src/pages/instl-sncn/ui/components/task-se-picker-dialog.tsx
@@ -0,0 +1,107 @@
+"use client";
+
+import { useEffect, useState } from "react";
+
+import { Field, FieldGroup, FieldLabel, FieldSet } from "@/shared/ui/field";
+import { useCodeList } from "@/entities/code";
+import {
+  Button,
+  Checkbox,
+  Dialog,
+  DialogContent,
+  DialogFooter,
+  DialogHeader,
+  DialogTitle,
+  Skeleton,
+  Table,
+  TableCell,
+  TableHead,
+  TableHeader,
+  TableRow,
+} from "@common/components";
+
+interface TaskSePickerDialogProps {
+  open: boolean;
+  onOpenChange: (open: boolean) => void;
+  onConfirm: (selectedCodes: string[]) => void;
+}
+
+function TaskSePickerDialog({ open, onOpenChange, onConfirm }: TaskSePickerDialogProps) {
+  const [selectedCodes, setSelectedCodes] = useState<string[]>([]);
+  const { data: taskOptions, isPending } = useCodeList("INSTL");
+
+  useEffect(() => {
+    if (!open) return;
+    setSelectedCodes([]);
+  }, [open]);
+
+  function handleCheckedChange(code: string, checked: boolean) {
+    setSelectedCodes((prev) =>
+      checked ? [...prev, code] : prev.filter((value) => value !== code),
+    );
+  }
+
+  function handleConfirm() {
+    onConfirm(selectedCodes);
+  }
+
+  return (
+    <Dialog open={open} onOpenChange={onOpenChange}>
+      <DialogContent className="max-w-[60rem]" aria-describedby={undefined}>
+        <DialogHeader>
+          <DialogTitle>설치인가 신청</DialogTitle>
+        </DialogHeader>
+
+        {isPending ? (
+          <Skeleton className="h-[16rem] w-full" />
+        ) : (
+          <Table variant="secondary">
+            <TableHeader>
+              <TableRow>
+                <TableHead>업무구분</TableHead>
+                <TableCell>
+                  <FieldSet className="px-2">
+                    <FieldGroup data-slot="checkbox-group" className="flex-row flex-wrap">
+                      {taskOptions?.map((option) => (
+                        <Field key={option.lwpoCd} orientation="horizontal" className="w-auto">
+                          <Checkbox
+                            id={`task-se-picker-${option.lwpoCd}`}
+                            checked={selectedCodes.includes(option.lwpoCd)}
+                            onCheckedChange={(checked) =>
+                              handleCheckedChange(option.lwpoCd, checked === true)
+                            }
+                          />
+                          <FieldLabel
+                            htmlFor={`task-se-picker-${option.lwpoCd}`}
+                            className="font-normal"
+                          >
+                            {option.lwpoCdNm}
+                          </FieldLabel>
+                        </Field>
+                      ))}
+                    </FieldGroup>
+                  </FieldSet>
+                </TableCell>
+              </TableRow>
+            </TableHeader>
+          </Table>
+        )}
+
+        <DialogFooter>
+          <Button type="button" color="white" onClick={() => onOpenChange(false)}>
+            취소
+          </Button>
+          <Button
+            type="button"
+            onClick={handleConfirm}
+            disabled={isPending || selectedCodes.length === 0}
+          >
+            확인
+          </Button>
+        </DialogFooter>
+      </DialogContent>
+    </Dialog>
+  );
+}
+
+export { TaskSePickerDialog };
diff --git a/apps/as/src/pages/instl-sncn/ui/instl-form-page.tsx b/apps/as/src/pages/instl-sncn/ui/instl-form-page.tsx
index 3e06ca069..9973648fa 100644
--- a/apps/as/src/pages/instl-sncn/ui/instl-form-page.tsx
+++ b/apps/as/src/pages/instl-sncn/ui/instl-form-page.tsx
@@ -28,9 +28,10 @@ import { PrivacyConsentSection } from "./sections/privacy-consent-section";
 interface InstlFormPageProps {
   mode: "create" | "edit";
   initialData?: InstlSncnMngDetResponse;
+  taskSeComCd?: string[];
 }
 
-function InstlFormPage({ mode, initialData }: InstlFormPageProps) {
+function InstlFormPage({ mode, initialData, taskSeComCd }: InstlFormPageProps) {
   const router = useRouter();
   const userInfo = useUserStore((state) => state.userInfo);
   const alert = useAlertStore((state) => state.setMessage);
@@ -43,7 +44,7 @@ function InstlFormPage({ mode, initialData }: InstlFormPageProps) {
     defaultValues:
       isEditMode && initialData
         ? mapDetailToFormData(initialData)
-        : getCreateDefaultValues(userInfo),
+        : getCreateDefaultValues(userInfo, taskSeComCd),
   });
 
   async function onSave(data: CnfmRegistFormData) {
diff --git a/apps/as/src/pages/instl-sncn/ui/instl-list.tsx b/apps/as/src/pages/instl-sncn/ui/instl-list.tsx
index 4f3660dcc..fe202f45a 100644
--- a/apps/as/src/pages/instl-sncn/ui/instl-list.tsx
+++ b/apps/as/src/pages/instl-sncn/ui/instl-list.tsx
@@ -1,6 +1,6 @@
 "use client";
 
-import { useMemo } from "react";
+import { useMemo, useState } from "react";
 import { useRouter } from "next/navigation";
 
 import { getCoreRowModel, type PaginationState } from "@tanstack/react-table";
@@ -11,6 +11,8 @@ import { Button } from "@common/components";
 
 import { createInstlSncnColumns } from "../model/columns";
 
+import { TaskSePickerDialog } from "./components/task-se-picker-dialog";
+
 interface InstlListProps {
   searchParams: InstlSncnMngSearchParams;
   pagination: PaginationState;
@@ -19,6 +21,7 @@ interface InstlListProps {
 
 function InstlList({ searchParams, pagination, onPaginationChange }: InstlListProps) {
   const router = useRouter();
+  const [isTaskSeDialogOpen, setIsTaskSeDialogOpen] = useState(false);
 
   const queryParams = useMemo(
     () => ({
@@ -55,19 +58,32 @@ function InstlList({ searchParams, pagination, onPaginationChange }: InstlListPr
   });
 
   const handleRegisterClick = () => {
-    router.push("/instl-sncn/regist");
+    setIsTaskSeDialogOpen(true);
+  };
+
+  const handleConfirmTaskSe = (selectedCodes: string[]) => {
+    setIsTaskSeDialogOpen(false);
+    const query = selectedCodes.join(",");
+    router.push(`/instl-sncn/regist?taskSeComCd=${query}`);
   };
 
   return (
-    <section className="card card-border mx-0 bg-background pb-8 pt-0">
-      <div className="card-header flex items-center justify-between">
-        <h3 className="text-2xl font-semibold">설치인가 목록</h3>
-        <Button type="button" color="green" onClick={handleRegisterClick}>
-          신청
-        </Button>
-      </div>
-      {tableComponent}
-    </section>
+    <>
+      <section className="card card-border mx-0 bg-background pb-8 pt-0">
+        <div className="card-header flex items-center justify-between">
+          <h3 className="text-2xl font-semibold">설치인가 목록</h3>
+          <Button type="button" color="green" onClick={handleRegisterClick}>
+            신청
+          </Button>
+        </div>
+        {tableComponent}
+      </section>
+      <TaskSePickerDialog
+        open={isTaskSeDialogOpen}
+        onOpenChange={setIsTaskSeDialogOpen}
+        onConfirm={handleConfirmTaskSe}
+      />
+    </>
   );
 }
 
diff --git a/apps/as/src/pages/instl-sncn/ui/instl-regist-page.tsx b/apps/as/src/pages/instl-sncn/ui/instl-regist-page.tsx
index ba4044e8a..0b9472a15 100644
--- a/apps/as/src/pages/instl-sncn/ui/instl-regist-page.tsx
+++ b/apps/as/src/pages/instl-sncn/ui/instl-regist-page.tsx
@@ -1,7 +1,11 @@
 import { InstlFormPage } from "./instl-form-page";
 
-function InstlRegistPage() {
-  return <InstlFormPage mode="create" />;
+interface InstlRegistPageProps {
+  taskSeComCd?: string[];
+}
+
+function InstlRegistPage({ taskSeComCd }: InstlRegistPageProps) {
+  return <InstlFormPage mode="create" taskSeComCd={taskSeComCd} />;
 }
 
 export { InstlRegistPage };
diff --git a/apps/as/src/pages/instl-sncn/ui/sections/basic-info-form-section.tsx b/apps/as/src/pages/instl-sncn/ui/sections/basic-info-form-section.tsx
index 2a9a7f276..585835571 100644
--- a/apps/as/src/pages/instl-sncn/ui/sections/basic-info-form-section.tsx
+++ b/apps/as/src/pages/instl-sncn/ui/sections/basic-info-form-section.tsx
@@ -4,7 +4,7 @@ import { useState } from "react";
 import { Controller, useFormContext } from "react-hook-form";
 
 import { Field, FieldError, FieldGroup, FieldLabel, FieldSet } from "@/shared/ui/field";
-import { useCodeList } from "@/entities/code";
+import { findCodeLabel, useCodeList } from "@/entities/code";
 import {
   Button,
   Checkbox,
@@ -41,6 +41,12 @@ function BasicInfoFormSection() {
   const { data: rtlztnFcltOptions } = useCodeList("RTLZTNFCLTSE");
   const { data: rtlztnUsgOptions } = useCodeList("RTLZTNUSGSE");
 
+  const taskSeComCdLabel =
+    taskSeComCd
+      .map((code) => findCodeLabel(taskOptions, code))
+      .filter(Boolean)
+      .join(", ") || "-";
+
   return (
     <SectionCollapsible title="기본 정보">
       <Table variant="secondary">
@@ -139,36 +145,11 @@ function BasicInfoFormSection() {
               <Controller
                 name="instlSncnMng.taskSeComCd"
                 control={control}
-                render={({ field, fieldState }) => (
-                  <FieldSet>
-                    <FieldGroup data-slot="checkbox-group" className="flex-row">
-                      {taskOptions?.map((option) => (
-                        <Field
-                          key={option.lwpoCd}
-                          orientation="horizontal"
-                          data-invalid={fieldState.invalid}
-                          className="w-auto"
-                        >
-                          <Checkbox
-                            id={`task-${option.lwpoCd}`}
-                            name={field.name}
-                            aria-invalid={fieldState.invalid}
-                            checked={field.value.includes(option.lwpoCd)}
-                            onCheckedChange={(checked) => {
-                              const newValue = checked
-                                ? [...field.value, option.lwpoCd]
-                                : field.value.filter((value) => value !== option.lwpoCd);
-                              field.onChange(newValue);
-                            }}
-                          />
-                          <FieldLabel htmlFor={`task-${option.lwpoCd}`} className="font-normal">
-                            {option.lwpoCdNm}
-                          </FieldLabel>
-                        </Field>
-                      ))}
-                    </FieldGroup>
+                render={({ fieldState }) => (
+                  <Field data-invalid={fieldState.invalid}>
+                    <span>{taskSeComCdLabel}</span>
                     <FieldError errors={[fieldState.error]} />
-                  </FieldSet>
+                  </Field>
                 )}
               />
             </TableCell>