diff --git a/app/utils/api/constant.ts b/app/utils/api/constant.ts
new file mode 100644
index 0000000..6685462
--- /dev/null
+++ b/app/utils/api/constant.ts
@@ -0,0 +1,26 @@
+export const ERROR_CODE = {
+  // USER
+  UNREGISTERED_USER: '',
+  INVALIDATED_STUDENT_NUMBER_TYPE: '',
+  INVALIDATED_PASSWORD_TPYE: '',
+  MISMATCHED_PASSWORD: '',
+  NOT_FOUND_AUTHID: '',
+  INVALIDATED_AUTHID_TYPE: '',
+  INCORRECT_PASSWORD: '',
+  DUPLICATED_STUDENT_NUMBER: '',
+  DUPLICATED_AUTHID: '',
+  UNSUPPORTED_STUDENT_NUMBER: '',
+  INVALIDATED_AUTH_TOKEN: '',
+
+  // COMMON
+  INTERNAL_SEVER_ERROR: '예상치 못한 에러가 발생했습니다.',
+
+  // RESULT
+  INVALIDATED_GRADUATION_CATEGORY: '',
+  UNFITTED_GRADUATION_CATEGORY: '',
+
+  // LECTURE (아래 세개 모두 PDF Parsing에서 발생하는 에러)
+  INCORRECT_STUDENT_NUMBER: '',
+  NON_EXISTED_LECTURE: '',
+  UNSUPPORTED_STUDENT_CATEGORY: '',
+} as const;