diff --git a/packages/shared/interfaces/request/index.ts b/packages/shared/interfaces/request/index.ts
new file mode 100644
index 00000000..b8efb69b
--- /dev/null
+++ b/packages/shared/interfaces/request/index.ts
@@ -0,0 +1,5 @@
+export * from './master-entry.request.interface';
+export * from './nickname.request.interface';
+export * from './participant-entry.request.interface';
+export * from './show-quiz.request.interface';
+export * from './start-quiz.request.interface';
diff --git a/packages/shared/interfaces/request/master-entry.request.interface.ts b/packages/shared/interfaces/request/master-entry.request.interface.ts
new file mode 100644
index 00000000..ef36273a
--- /dev/null
+++ b/packages/shared/interfaces/request/master-entry.request.interface.ts
@@ -0,0 +1,3 @@
+export interface MasterEntryRequest {
+  classId: number;
+}
diff --git a/packages/shared/interfaces/request/nickname.request.interface.ts b/packages/shared/interfaces/request/nickname.request.interface.ts
new file mode 100644
index 00000000..ea452fc9
--- /dev/null
+++ b/packages/shared/interfaces/request/nickname.request.interface.ts
@@ -0,0 +1,3 @@
+export interface NicknameRequest {
+  pinCode: string;
+}
diff --git a/packages/shared/interfaces/request/participant-entry.request.interface.ts b/packages/shared/interfaces/request/participant-entry.request.interface.ts
new file mode 100644
index 00000000..caf2b3f3
--- /dev/null
+++ b/packages/shared/interfaces/request/participant-entry.request.interface.ts
@@ -0,0 +1,4 @@
+export interface ParticipantEntryRequest {
+  pinCode: string;
+  nickname: string;
+}
diff --git a/packages/shared/interfaces/request/show-quiz.request.interface.ts b/packages/shared/interfaces/request/show-quiz.request.interface.ts
new file mode 100644
index 00000000..5aeff60d
--- /dev/null
+++ b/packages/shared/interfaces/request/show-quiz.request.interface.ts
@@ -0,0 +1,3 @@
+export interface ShowQuizRequest {
+  pinCode: string;
+}
diff --git a/packages/shared/interfaces/request/start-quiz.request.interface.ts b/packages/shared/interfaces/request/start-quiz.request.interface.ts
new file mode 100644
index 00000000..3cfc4cef
--- /dev/null
+++ b/packages/shared/interfaces/request/start-quiz.request.interface.ts
@@ -0,0 +1,4 @@
+export interface StartQuizRequest {
+  sid: string;
+  pinCode: string;
+}
diff --git a/packages/shared/interfaces/response/index.ts b/packages/shared/interfaces/response/index.ts
new file mode 100644
index 00000000..4e5ff2e7
--- /dev/null
+++ b/packages/shared/interfaces/response/index.ts
@@ -0,0 +1,10 @@
+export * from './master-statistics.response.interface';
+export * from './participant-statistics.response.interface';
+export * from './time-end.response.interface';
+export * from './timer-tick.response.interface';
+export * from './pincode.response.interface';
+export * from './nickname.response.interface';
+export * from './session.response.interface';
+export * from './show-quiz.response.interface';
+export * from './start-quiz.response.interface';
+export * from './submit-answer.request.interface';
diff --git a/packages/shared/interfaces/response/master-statistics.response.interface.ts b/packages/shared/interfaces/response/master-statistics.response.interface.ts
new file mode 100644
index 00000000..7b989b9c
--- /dev/null
+++ b/packages/shared/interfaces/response/master-statistics.response.interface.ts
@@ -0,0 +1,8 @@
+export interface MasterStatisticsResponse {
+  totalSubmit: number;
+  solveRate: number;
+  averageTime: number;
+  participantRate: number;
+  choiceStatus: { [key: number]: number };
+  submitHistory: [string, number][];
+}
diff --git a/packages/shared/interfaces/response/nickname.response.interface.ts b/packages/shared/interfaces/response/nickname.response.interface.ts
new file mode 100644
index 00000000..d4fa7207
--- /dev/null
+++ b/packages/shared/interfaces/response/nickname.response.interface.ts
@@ -0,0 +1,3 @@
+export interface NicknameResponse {
+  participantList: string[];
+}
diff --git a/packages/shared/interfaces/response/participant-statistics.response.interface.ts b/packages/shared/interfaces/response/participant-statistics.response.interface.ts
new file mode 100644
index 00000000..17791a64
--- /dev/null
+++ b/packages/shared/interfaces/response/participant-statistics.response.interface.ts
@@ -0,0 +1,6 @@
+export interface ParticipantStatisticsResponse {
+  totalSubmit: number;
+  solveRate: number;
+  averageTime: number;
+  participantRate: number;
+}
diff --git a/packages/shared/interfaces/response/pincode.response.interface.ts b/packages/shared/interfaces/response/pincode.response.interface.ts
new file mode 100644
index 00000000..2a831f9e
--- /dev/null
+++ b/packages/shared/interfaces/response/pincode.response.interface.ts
@@ -0,0 +1,3 @@
+export interface PincodeResponse {
+  pinCode: string;
+}
diff --git a/packages/shared/interfaces/response/session.response.interface.ts b/packages/shared/interfaces/response/session.response.interface.ts
new file mode 100644
index 00000000..91a1c93a
--- /dev/null
+++ b/packages/shared/interfaces/response/session.response.interface.ts
@@ -0,0 +1,3 @@
+export interface SessionResponse {
+  sid: string;
+}
diff --git a/packages/shared/interfaces/response/show-quiz.response.interface.ts b/packages/shared/interfaces/response/show-quiz.response.interface.ts
new file mode 100644
index 00000000..9ac39eb6
--- /dev/null
+++ b/packages/shared/interfaces/response/show-quiz.response.interface.ts
@@ -0,0 +1,6 @@
+import { QuizData } from '../utils/quizdata.interface';
+
+export interface ShowQuizResponse {
+  currentQuizData: QuizData;
+  isLast: boolean;
+}
diff --git a/packages/shared/interfaces/response/start-quiz.response.interface.ts b/packages/shared/interfaces/response/start-quiz.response.interface.ts
new file mode 100644
index 00000000..eaa7938c
--- /dev/null
+++ b/packages/shared/interfaces/response/start-quiz.response.interface.ts
@@ -0,0 +1,3 @@
+export interface StartQuizResponse {
+  isStarted: boolean;
+}
diff --git a/packages/shared/interfaces/response/submit-answer.request.interface.ts b/packages/shared/interfaces/response/submit-answer.request.interface.ts
new file mode 100644
index 00000000..75315295
--- /dev/null
+++ b/packages/shared/interfaces/response/submit-answer.request.interface.ts
@@ -0,0 +1,6 @@
+export interface SubmitAnswerRequest {
+  pinCode: string;
+  sid: string;
+  selectedAnswer: number[];
+  submitTime: number;
+}
diff --git a/packages/shared/interfaces/response/time-end.response.interface.ts b/packages/shared/interfaces/response/time-end.response.interface.ts
new file mode 100644
index 00000000..0cf1533c
--- /dev/null
+++ b/packages/shared/interfaces/response/time-end.response.interface.ts
@@ -0,0 +1,3 @@
+export interface TimeEndResponse {
+  isEnd: boolean;
+}
diff --git a/packages/shared/interfaces/response/timer-tick.response.interface.ts b/packages/shared/interfaces/response/timer-tick.response.interface.ts
new file mode 100644
index 00000000..7e45a2f9
--- /dev/null
+++ b/packages/shared/interfaces/response/timer-tick.response.interface.ts
@@ -0,0 +1,5 @@
+export interface TimerTickResponse {
+  curretTime: number;
+  elaspedTime: number;
+  remainingTime: number;
+}
diff --git a/packages/shared/interfaces/utils/choice.interface.ts b/packages/shared/interfaces/utils/choice.interface.ts
new file mode 100644
index 00000000..49a1c12d
--- /dev/null
+++ b/packages/shared/interfaces/utils/choice.interface.ts
@@ -0,0 +1,7 @@
+export interface Choice {
+  id: number;
+  quizId: number;
+  content: string;
+  isCorrect: boolean;
+  position: number;
+}
diff --git a/packages/shared/interfaces/utils/quizdata.interface.ts b/packages/shared/interfaces/utils/quizdata.interface.ts
new file mode 100644
index 00000000..d401549e
--- /dev/null
+++ b/packages/shared/interfaces/utils/quizdata.interface.ts
@@ -0,0 +1,12 @@
+import { Choice } from './choice.interface';
+import { QuizType } from '../../types/quiz.types';
+
+export interface QuizData {
+  id: number;
+  content: string;
+  quizType: QuizType;
+  timeLimit: number;
+  point: number;
+  position: number;
+  choices: Choice[];
+}
diff --git a/packages/shared/types/a.ts b/packages/shared/types/a.ts
deleted file mode 100644
index ef74d34b..00000000
--- a/packages/shared/types/a.ts
+++ /dev/null
@@ -1 +0,0 @@
-const a = 5;
diff --git a/packages/shared/types/quiz.types.ts b/packages/shared/types/quiz.types.ts
new file mode 100644
index 00000000..7eb776e4
--- /dev/null
+++ b/packages/shared/types/quiz.types.ts
@@ -0,0 +1,6 @@
+export const QUIZ_TYPES = {
+  MULTIPLE_CHOICE: 'MC',
+  TRUE_FALSE: 'TF',
+} as const;
+
+export type QuizType = (typeof QUIZ_TYPES)[keyof typeof QUIZ_TYPES];