diff --git a/src/hooks/class/useClassDataByParams.ts b/src/hooks/class/useClassDataByParams.ts
index 004d01af..7cd9deea 100644
--- a/src/hooks/class/useClassDataByParams.ts
+++ b/src/hooks/class/useClassDataByParams.ts
@@ -9,18 +9,18 @@ interface UseClassDataByParamsProps {
 
 // 현재 경로에 해당하는 클래스, 서브클래스 데이터
 function useClassDataByParams({ classDataList }: UseClassDataByParamsProps) {
-  const { classId, subClassId } = useParams();
+  const { classId: classIdParam, subClassId: subClassIdParam } = useParams();
 
   const currentPageClassData = useMemo(() => {
-    return classDataList?.find(d => d.title === classId?.toUpperCase());
-  }, [classDataList, classId]);
+    return classDataList?.find(d => d.title === classIdParam?.toUpperCase());
+  }, [classDataList, classIdParam]);
   const currentPageSubClassData = useMemo(() => {
     return currentPageClassData?.subClasses.find(
-      d => d.orderNumber === Number(subClassId),
+      d => d.orderNumber === Number(subClassIdParam),
     );
-  }, [currentPageClassData, subClassId]);
+  }, [currentPageClassData, subClassIdParam]);
 
-  const isSubClassPage = !!classId && !!subClassId;
+  const isSubClassPage = !!classIdParam && !!subClassIdParam;
 
   return { currentPageClassData, currentPageSubClassData, isSubClassPage };
 }
diff --git a/src/hooks/class/useSubClassFileInfoList.ts b/src/hooks/class/useSubClassFileInfoList.ts
index 8b05ce2e..4f4d0ab4 100644
--- a/src/hooks/class/useSubClassFileInfoList.ts
+++ b/src/hooks/class/useSubClassFileInfoList.ts
@@ -8,22 +8,20 @@ import useBoundStore from '@/stores';
 import { FileInfo } from '@/types/class';
 
 interface UseSubClassFileInfoListProps {
-  subLectureId?: number;
+  subClassId?: number;
 }
 
-function useSubClassFileInfoList({
-  subLectureId,
-}: UseSubClassFileInfoListProps) {
-  const { classId, subClassId } = useParams();
+function useSubClassFileInfoList({ subClassId }: UseSubClassFileInfoListProps) {
+  const { classId: classIdParam, subClassId: subClassIdParam } = useParams();
   const subClassIdMap = useSubClassIdMap();
 
-  let resolvedSubLectureId;
+  let resolvedSubClassId;
   // 관리자 페이지 내에서 호출 시
-  if (subLectureId && !subClassIdMap) {
-    resolvedSubLectureId = subLectureId;
+  if (subClassId && !subClassIdMap) {
+    resolvedSubClassId = subClassId;
   } else {
-    resolvedSubLectureId =
-      subClassIdMap[`${classId?.toUpperCase()}-${subClassId}`];
+    resolvedSubClassId =
+      subClassIdMap[`${classIdParam?.toUpperCase()}-${subClassIdParam}`];
   }
 
   const user = useBoundStore(state => state.user);
@@ -33,9 +31,9 @@ function useSubClassFileInfoList({
     isLoading,
     isError,
   } = useQuery({
-    queryKey: ['class', 'sub-class-file-list', resolvedSubLectureId],
-    queryFn: () => ClassApi.getSubClassFileList(resolvedSubLectureId),
-    enabled: !!resolvedSubLectureId,
+    queryKey: ['class', 'sub-class-file-list', resolvedSubClassId],
+    queryFn: () => ClassApi.getSubClassFileList(resolvedSubClassId),
+    enabled: !!resolvedSubClassId,
   });
 
   const findFileInfo = useMemo(() => {
diff --git a/src/pages/Admin/Class/components/FileItem.tsx b/src/pages/Admin/Class/components/FileItem.tsx
index ece8927d..c227e1b3 100644
--- a/src/pages/Admin/Class/components/FileItem.tsx
+++ b/src/pages/Admin/Class/components/FileItem.tsx
@@ -4,10 +4,10 @@ import FileUpdateModal from '@/pages/Admin/Class/components/FileUpdateModal';
 import { FileInfo } from '@/types/class';
 
 function FileItem({
-  subLectureId,
+  subClassId,
   fileInfo,
 }: {
-  subLectureId: number;
+  subClassId: number;
   fileInfo: FileInfo;
 }) {
   const { assignmentType: fileType, assignmentFileId: fileId } = fileInfo;
@@ -57,7 +57,7 @@ function FileItem({
       </button>
 
       <FileUpdateModal
-        subLectureId={subLectureId}
+        subClassId={subClassId}
         fileType={fileType}
         fileId={fileId}
         isVisible={isVisible}
diff --git a/src/pages/Admin/Class/components/FileList.tsx b/src/pages/Admin/Class/components/FileList.tsx
index dd605f14..7ba5036e 100644
--- a/src/pages/Admin/Class/components/FileList.tsx
+++ b/src/pages/Admin/Class/components/FileList.tsx
@@ -2,12 +2,12 @@ import useSubClassFileInfoList from '@/hooks/class/useSubClassFileInfoList';
 import FileItem from '@/pages/Admin/Class/components/FileItem';
 
 interface FileListProps {
-  subLectureId: number;
+  subClassId: number;
 }
 
-function FileList({ subLectureId }: FileListProps) {
+function FileList({ subClassId }: FileListProps) {
   const { subClassFileInfoList, isLoading, isError } = useSubClassFileInfoList({
-    subLectureId,
+    subClassId,
   });
 
   if (isError || isLoading) {
@@ -28,7 +28,7 @@ function FileList({ subLectureId }: FileListProps) {
           return findFileInfo ? (
             <FileItem
               key={findFileInfo.assignmentFileId}
-              subLectureId={subLectureId}
+              subClassId={subClassId}
               fileInfo={findFileInfo}
             />
           ) : null;
diff --git a/src/pages/Admin/Class/components/FileUpdateModal.tsx b/src/pages/Admin/Class/components/FileUpdateModal.tsx
index c920e9b9..4d04374d 100644
--- a/src/pages/Admin/Class/components/FileUpdateModal.tsx
+++ b/src/pages/Admin/Class/components/FileUpdateModal.tsx
@@ -9,7 +9,7 @@ import useFileUpdateForm, {
 import useFileUpdateMutation from '@/pages/Admin/Class/hooks/useFileUpdateMutation';
 
 interface FileUpdateModalProps {
-  subLectureId: number;
+  subClassId: number;
   fileType: string;
   fileId: number;
   isVisible: boolean;
@@ -17,7 +17,7 @@ interface FileUpdateModalProps {
 }
 
 function FileUpdateModal({
-  subLectureId,
+  subClassId,
   fileType,
   fileId,
   isVisible,
@@ -25,7 +25,7 @@ function FileUpdateModal({
 }: FileUpdateModalProps) {
   const { register, errors, handleSubmit, fieldRules, reset } =
     useFileUpdateForm();
-  const { mutation } = useFileUpdateMutation({ subLectureId, fileId });
+  const { mutation } = useFileUpdateMutation({ subClassId, fileId });
 
   const onSubmit: SubmitHandler<IFileUpdateForm> = data => {
     const result = window.confirm('파일을 수정하시겠습니까?');
diff --git a/src/pages/Admin/Class/components/FileUploadModal.tsx b/src/pages/Admin/Class/components/FileUploadModal.tsx
index d56e3b24..f40ef6a9 100644
--- a/src/pages/Admin/Class/components/FileUploadModal.tsx
+++ b/src/pages/Admin/Class/components/FileUploadModal.tsx
@@ -9,18 +9,18 @@ import useFileUploadForm, {
 import useFileUploadMutation from '@/pages/Admin/Class/hooks/useFileUploadMutation';
 
 interface FileEditorModalProps {
-  subLectureId: number;
+  subClassId: number;
   isVisible: boolean;
   onClose: () => void;
 }
 
 function FileUploadModal({
-  subLectureId,
+  subClassId,
   isVisible,
   onClose,
 }: FileEditorModalProps) {
   const { mutation } = useFileUploadMutation({
-    subLectureId,
+    subClassId,
   });
 
   const { register, errors, handleSubmit, reset, fieldRules } =
diff --git a/src/pages/Admin/Class/components/SubClassCard.tsx b/src/pages/Admin/Class/components/SubClassCard.tsx
index 28c6a8b6..b571b273 100644
--- a/src/pages/Admin/Class/components/SubClassCard.tsx
+++ b/src/pages/Admin/Class/components/SubClassCard.tsx
@@ -58,11 +58,11 @@ function SubClassCard({ classTitle, subClass }: SubClassCardProps) {
         >
           파일 목록 확인하기
         </button>
-        {openFileList && <FileList subLectureId={subClass.subClassId} />}
+        {openFileList && <FileList subClassId={subClass.subClassId} />}
       </InfoRow>
 
       <FileUploadModal
-        subLectureId={subClass.subClassId}
+        subClassId={subClass.subClassId}
         isVisible={isVisible}
         onClose={toggleModal}
       />
diff --git a/src/pages/Admin/Class/hooks/useFileUpdateMutation.ts b/src/pages/Admin/Class/hooks/useFileUpdateMutation.ts
index b4fd7cb4..7c3f19ae 100644
--- a/src/pages/Admin/Class/hooks/useFileUpdateMutation.ts
+++ b/src/pages/Admin/Class/hooks/useFileUpdateMutation.ts
@@ -4,12 +4,12 @@ import { queryClient } from '@/libs/react-query';
 import AdminClassApi from '@/services/admin/class';
 
 interface UseFileUpdateMutationProps {
-  subLectureId: number;
+  subClassId: number;
   fileId: number;
 }
 
 function useFileUpdateMutation({
-  subLectureId,
+  subClassId,
   fileId,
 }: UseFileUpdateMutationProps) {
   const mutation = useMutation({
@@ -20,7 +20,7 @@ function useFileUpdateMutation({
         queryKey: ['class', 'sub-class-general-file', fileId],
       });
       queryClient.invalidateQueries({
-        queryKey: ['class', 'sub-class-file-list', subLectureId],
+        queryKey: ['class', 'sub-class-file-list', subClassId],
       });
     },
   });
diff --git a/src/pages/Admin/Class/hooks/useFileUploadMutation.ts b/src/pages/Admin/Class/hooks/useFileUploadMutation.ts
index 8dc3e8b6..b304eca1 100644
--- a/src/pages/Admin/Class/hooks/useFileUploadMutation.ts
+++ b/src/pages/Admin/Class/hooks/useFileUploadMutation.ts
@@ -4,16 +4,16 @@ import { queryClient } from '@/libs/react-query';
 import AdminClassApi from '@/services/admin/class';
 
 interface UseFileUploadProps {
-  subLectureId: number;
+  subClassId: number;
 }
 
-function useFileUploadMutation({ subLectureId }: UseFileUploadProps) {
+function useFileUploadMutation({ subClassId }: UseFileUploadProps) {
   const mutation = useMutation({
     mutationFn: (data: { type: string; file: File }) =>
-      AdminClassApi.uploadSubClassFile({ ...data, subLectureId }),
+      AdminClassApi.uploadSubClassFile({ ...data, subClassId }),
     onSuccess: () => {
       queryClient.invalidateQueries({
-        queryKey: ['class', 'sub-class-file-list', subLectureId],
+        queryKey: ['class', 'sub-class-file-list', subClassId],
       });
     },
   });
diff --git a/src/services/admin/class.ts b/src/services/admin/class.ts
index 2ab96f9c..2af7a16b 100644
--- a/src/services/admin/class.ts
+++ b/src/services/admin/class.ts
@@ -20,11 +20,11 @@ class AdminClassApi {
   }
 
   static async uploadSubClassFile({
-    subLectureId,
+    subClassId,
     type,
     file,
   }: {
-    subLectureId: number;
+    subClassId: number;
     type: string;
     file: File;
   }) {
@@ -32,7 +32,7 @@ class AdminClassApi {
     formData.append('file', file);
 
     return post(
-      `/lectures/sub-lecture/${subLectureId}/file?assignmentType=${type}`,
+      `/lectures/sub-lecture/${subClassId}/file?assignmentType=${type}`,
       formData,
       {
         headers: {
diff --git a/src/services/class.ts b/src/services/class.ts
index eb751665..2b4ee56d 100644
--- a/src/services/class.ts
+++ b/src/services/class.ts
@@ -7,9 +7,9 @@ class ClassApi {
   }
 
   static async getSubClassFileList(
-    subLectureId: number,
+    subClassId: number,
   ): Promise<{ assignmentType: string; assignmentFileId: number }[]> {
-    return get(`/lectures/sub-lecture/${subLectureId}`);
+    return get(`/lectures/sub-lecture/${subClassId}`);
   }
 
   static async getSubClassFile(