diff --git a/src/entities/auth/DTO.d.ts b/src/entities/auth/DTO.d.ts
index 63f69a23..e5c32547 100644
--- a/src/entities/auth/DTO.d.ts
+++ b/src/entities/auth/DTO.d.ts
@@ -36,6 +36,7 @@ export interface TokenRefreshResponse {
 
 export interface ResetPasswordRequest {
   email: string;
+  code: string;
 }
 
 export interface ResetPasswordResponse {
@@ -57,3 +58,8 @@ export interface AppleCallbackRequest {
   id_token: string;
   fcmToken?: string;
 }
+
+export interface SendEmailCertificationRequest {
+  email: string;
+  certificationType: "EMAIL" | "TEMPORARY_PASSWORD";
+}
diff --git a/src/entities/auth/hooks/useEmailCertification.tsx b/src/entities/auth/hooks/useEmailCertification.tsx
index ba411d9a..39ff2b8e 100644
--- a/src/entities/auth/hooks/useEmailCertification.tsx
+++ b/src/entities/auth/hooks/useEmailCertification.tsx
@@ -7,8 +7,13 @@ import { toast } from "@/shared/hooks/useToast";
  * 이메일 인증 번호 발송 API 호출
  */
 export const useSendEmailCertification = () => {
-  return useMutation<boolean, Error, string>({
-    mutationFn: (email) => sendEmailCertification(email),
+  return useMutation<
+    boolean,
+    Error,
+    { email: string; certificationType?: "EMAIL" | "TEMPORARY_PASSWORD" }
+  >({
+    mutationFn: ({ email, certificationType }) =>
+      sendEmailCertification(email, certificationType),
     onError: (error) => {
       let errorMessage = "잠시 후 다시 시도해주세요.";
 
diff --git a/src/entities/user/api.ts b/src/entities/user/api.ts
index 7001d49d..bc1c7495 100644
--- a/src/entities/user/api.ts
+++ b/src/entities/user/api.ts
@@ -1,6 +1,7 @@
 import { getDefaultStore } from "jotai/vanilla";
 
 import { getAccessToken, signOut } from "@/entities/auth/api";
+import { SendEmailCertificationRequest } from "@/entities/auth/DTO.d";
 import { userAtom } from "@/entities/auth/model";
 import { apiCall } from "@/shared/api/utils";
 import { API_PATHS } from "@/shared/config/api";
@@ -195,16 +196,18 @@ export const updateUserRole = async (
 /**
  * 이메일 인증 번호 발송
  * @param email 인증 번호를 받을 이메일
+ * @param certificationType 인증 타입 (EMAIL | TEMPORARY_PASSWORD)
  * @returns 발송 성공 여부
  */
 export const sendEmailCertification = async (
-  email: string
+  email: string,
+  certificationType: "EMAIL" | "TEMPORARY_PASSWORD" = "EMAIL"
 ): Promise<boolean> => {
   try {
-    await apiCall<{ email: string }, void>({
+    await apiCall<SendEmailCertificationRequest, void>({
       method: "POST",
       path: API_PATHS.USER.FIND_PASSWORD,
-      data: { email },
+      data: { email, certificationType },
       withCredentials: true,
     });
 
diff --git a/src/pages/auth/find-password.tsx b/src/pages/auth/find-password.tsx
index 9cdf439c..a7648472 100644
--- a/src/pages/auth/find-password.tsx
+++ b/src/pages/auth/find-password.tsx
@@ -1,4 +1,3 @@
-import { useResetPassword } from "@/entities/auth/hooks";
 import { URL_PATHS } from "@/shared/constants/url-path";
 import useFormData from "@/shared/hooks/useFormdata";
 import { useStepNavigation } from "@/shared/hooks/useStepNavigation";
@@ -34,8 +33,6 @@ const FIND_PASSWORD_STEP_CONFIGS = {
 };
 
 export default function FindPasswordPage() {
-  const { mutate: resetPassword } = useResetPassword();
-
   const {
     currentStep: step,
     goToPreviousStep,
@@ -57,16 +54,22 @@ export default function FindPasswordPage() {
       goToNextStep();
     },
     2: () => {
-      resetPassword({ email: formData.email! });
+      // 임시 비밀번호 발급 완료
     },
   };
 
   const stepComponents = {
-    1: <EmailForm onNext={stepHandlers[1]} />,
+    1: (
+      <EmailForm
+        onNext={stepHandlers[1]}
+        certificationType="TEMPORARY_PASSWORD"
+      />
+    ),
     2: (
       <EmailCertificationForm
         email={formData.email!}
         onNext={stepHandlers[2]}
+        mode="findPassword"
       />
     ),
   };
diff --git a/src/widgets/auth/ui/EmailCertificationForm.tsx b/src/widgets/auth/ui/EmailCertificationForm.tsx
index 99a70071..d3ab8090 100644
--- a/src/widgets/auth/ui/EmailCertificationForm.tsx
+++ b/src/widgets/auth/ui/EmailCertificationForm.tsx
@@ -2,7 +2,7 @@ import { zodResolver } from "@hookform/resolvers/zod";
 import { useForm } from "react-hook-form";
 import * as z from "zod";
 
-import { useCheckEmailCertification } from "@/entities/auth/hooks";
+import { useCheckEmailCertification, useResetPassword } from "@/entities/auth/hooks";
 import CertificationField from "@/features/form/ui/fields/CertificationField";
 import SubmitButton from "@/features/form/ui/SubmitButton";
 import { Form } from "@/shared/ui/form";
@@ -15,14 +15,21 @@ export type EmailCertificationFormValues = z.infer<typeof step2Schema>;
 
 interface EmailCertificationFormProps {
   email: string;
-  onNext: () => void;
+  onNext: (certification?: string) => void;
+  mode?: "signup" | "findPassword";
 }
 
 export function EmailCertificationForm({
   email,
   onNext,
+  mode = "signup",
 }: EmailCertificationFormProps) {
-  const { mutate: checkEmail, isPending } = useCheckEmailCertification();
+  const { mutate: checkEmail, isPending: isCheckPending } =
+    useCheckEmailCertification();
+  const { mutate: resetPassword, isPending: isResetPending } =
+    useResetPassword();
+
+  const isPending = isCheckPending || isResetPending;
 
   const form = useForm<EmailCertificationFormValues>({
     resolver: zodResolver(step2Schema),
@@ -31,14 +38,27 @@ export function EmailCertificationForm({
   });
 
   const onSubmit = (data: EmailCertificationFormValues) => {
-    checkEmail(
-      { email, certification: data.certification },
-      {
-        onSuccess: (success: boolean) => {
-          if (success) onNext();
-        },
-      }
-    );
+    if (mode === "findPassword") {
+      // 비밀번호 찾기: 임시 비밀번호 발급 API 호출
+      resetPassword(
+        { email, code: data.certification },
+        {
+          onSuccess: () => {
+            onNext(data.certification);
+          },
+        }
+      );
+    } else {
+      // 회원가입: 인증번호 검증만
+      checkEmail(
+        { email, certification: data.certification },
+        {
+          onSuccess: (success: boolean) => {
+            if (success) onNext(data.certification);
+          },
+        }
+      );
+    }
   };
 
   return (
diff --git a/src/widgets/auth/ui/EmailForm.tsx b/src/widgets/auth/ui/EmailForm.tsx
index d5a03beb..796efab1 100644
--- a/src/widgets/auth/ui/EmailForm.tsx
+++ b/src/widgets/auth/ui/EmailForm.tsx
@@ -13,11 +13,15 @@ const step1Schema = z.object({
 
 export type EmailFormValues = z.infer<typeof step1Schema>;
 
+interface EmailFormProps {
+  onNext: (data: EmailFormValues) => void;
+  certificationType?: "EMAIL" | "TEMPORARY_PASSWORD";
+}
+
 export function EmailForm({
   onNext,
-}: {
-  onNext: (data: EmailFormValues) => void;
-}) {
+  certificationType = "EMAIL",
+}: EmailFormProps) {
   const { mutate: sendEmail, isPending } = useSendEmailCertification();
 
   const form = useForm<EmailFormValues>({
@@ -27,11 +31,14 @@ export function EmailForm({
   });
 
   const onSubmit = (data: EmailFormValues) => {
-    sendEmail(data.email, {
-      onSuccess: (success: boolean) => {
-        if (success) onNext(data);
-      },
-    });
+    sendEmail(
+      { email: data.email, certificationType },
+      {
+        onSuccess: (success: boolean) => {
+          if (success) onNext(data);
+        },
+      }
+    );
   };
 
   return (