diff --git a/src/app/form/form.component.html b/src/app/form/form.component.html
index 526e3a3ede64803594cced2c85aa8c3ab7febd2d..1ab1982ba9e350967125465594dd12cb30ba557b 100644
--- a/src/app/form/form.component.html
+++ b/src/app/form/form.component.html
@@ -100,8 +100,17 @@
         </div>
         <div class="form-group" fxLayout="column">
           <label for="email">Courriel personnel</label>
+          <p class="special invalid" *ngIf="this.accountForm.get('email').hasError('alreadyExist')">
+            L'email est déja utilisé.
+          </p>
           <div fxLayout="row" fxLayoutGap="13px">
-            <input type="text" (input)="setValidationsForm()" formControlName="email" class="form-input" />
+            <input
+              type="text"
+              (input)="setValidationsForm()"
+              (keyup)="verifyUserExist($event.target.value)"
+              formControlName="email"
+              class="form-input"
+            />
             <img *ngIf="accountForm.get('email').valid" src="../../assets/form/validate.svg" alt="logo valid" />
             <img
               *ngIf="accountForm.get('email').invalid && accountForm.get('email').value"
@@ -113,7 +122,7 @@
         <div class="form-group" fxLayout="column">
           <label for="password">Création de mot de passe</label>
           <p
-            class="password"
+            class="special"
             [ngClass]="{ invalid: accountForm.get('password').invalid && accountForm.get('password').value }"
           >
             Le mot de passe doit contenir au minimum : 8 caractères dont un caractère spécial, un caractère en majuscule
diff --git a/src/app/form/form.component.scss b/src/app/form/form.component.scss
index 203a87dacfe3a1eed81fb8d603fbc5e1393a0452..7169d27acc9a1ccd471f85e14e1c4e75a1a8c2ee 100644
--- a/src/app/form/form.component.scss
+++ b/src/app/form/form.component.scss
@@ -151,7 +151,7 @@ h3 {
     margin-top: 10px;
     margin-bottom: 0;
     @include cn-regular-18;
-    &.password {
+    &.special {
       @include cn-regular-14;
       color: $grey-3;
 
diff --git a/src/app/form/form.component.ts b/src/app/form/form.component.ts
index 6832ffc8a1dd63d5f94939cf74c52b64e7ea41c7..5da4fa9a642de61863a04baec2726e85fb7208a9 100644
--- a/src/app/form/form.component.ts
+++ b/src/app/form/form.component.ts
@@ -557,4 +557,15 @@ export class FormComponent implements OnInit {
     this.resolve(hasAccept);
     this.showConfirmationModal = false;
   }
+
+  public verifyUserExist(inputEmail): void {
+    if (this.accountForm.get('email').valid) {
+      this.profileService.isEmailAlreadyUsed(inputEmail).subscribe((isExist) => {
+        if (isExist) {
+          this.accountForm.get('email').setErrors({ alreadyExist: true });
+          this.setValidationsForm();
+        }
+      });
+    }
+  }
 }
diff --git a/src/app/profile/services/profile.service.ts b/src/app/profile/services/profile.service.ts
index a196203fda3801b7d685b23b35d24e1a6869d95f..849d148b45d4d0ca414206768b4a165ac7b17985 100644
--- a/src/app/profile/services/profile.service.ts
+++ b/src/app/profile/services/profile.service.ts
@@ -67,4 +67,8 @@ export class ProfileService {
   public changeEmail(newEmail: string, oldEmail: string): Observable<User> {
     return this.http.post<any>(`${this.baseUrl}/change-email`, { newEmail, oldEmail });
   }
+
+  public isEmailAlreadyUsed(newMail: string): Observable<Boolean> {
+    return this.http.post<Boolean>(`${this.baseUrl}/verify-exist-user`, { newMail });
+  }
 }