diff --git a/.gitignore b/.gitignore
index 2fa42a8..25cc136 100644
--- a/.gitignore
+++ b/.gitignore
@@ -7,4 +7,5 @@ generated_papers/
 target/
 users.json
 legal/
-lib/
\ No newline at end of file
+lib/
+config.properties
\ No newline at end of file
diff --git a/pom.xml b/pom.xml
index 8fdb633..800a271 100644
--- a/pom.xml
+++ b/pom.xml
@@ -46,6 +46,12 @@
             <artifactId>javafx-graphics</artifactId>
             <version>${javafx.version}</version>
         </dependency>
+
+        <dependency>
+            <groupId>org.apache.commons</groupId>
+            <artifactId>commons-email</artifactId>
+            <version>1.5</version>
+        </dependency>
     </dependencies>
 
     <build>
diff --git a/src/main/java/com/mathgenerator/controller/RegisterController.java b/src/main/java/com/mathgenerator/controller/RegisterController.java
index c1a2835..0227866 100644
--- a/src/main/java/com/mathgenerator/controller/RegisterController.java
+++ b/src/main/java/com/mathgenerator/controller/RegisterController.java
@@ -35,10 +35,17 @@ public class RegisterController {
             statusLabel.setText("请输入一个有效的邮箱地址！");
             return;
         }
-        // 调用后端服务发送验证码（模拟）
+
+        // 调用后端服务发送验证码
         this.sentCode = userService.sendVerificationCode(email);
-        statusLabel.setText("验证码已发送（请查看控制台输出）。");
-        sendCodeButton.setDisable(true); // 防止重复点击
+
+        // 处理发送结果
+        if (this.sentCode != null) {
+            statusLabel.setText("验证码已成功发送，请查收您的邮箱。");
+            sendCodeButton.setDisable(true); // 防止重复点击
+        } else {
+            statusLabel.setText("验证码发送失败！请检查配置或联系管理员。");
+        }
     }
 
     @FXML
diff --git a/src/main/java/com/mathgenerator/service/EmailConfig.java b/src/main/java/com/mathgenerator/service/EmailConfig.java
new file mode 100644
index 0000000..44618f8
--- /dev/null
+++ b/src/main/java/com/mathgenerator/service/EmailConfig.java
@@ -0,0 +1,35 @@
+package com.mathgenerator.service;
+
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.Properties;
+
+public class EmailConfig {
+    private static final Properties properties = new Properties();
+
+    static {
+        try (InputStream input = new FileInputStream("config.properties")) {
+            properties.load(input);
+        } catch (IOException ex) {
+            System.err.println("错误：无法加载 config.properties 文件！请确保该文件在项目根目录中。");
+            ex.printStackTrace();
+        }
+    }
+
+    public static String getHost() {
+        return properties.getProperty("smtp.host");
+    }
+
+    public static int getPort() {
+        return Integer.parseInt(properties.getProperty("smtp.port"));
+    }
+
+    public static String getUsername() {
+        return properties.getProperty("smtp.username");
+    }
+
+    public static String getPassword() {
+        return properties.getProperty("smtp.password");
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/com/mathgenerator/service/UserService.java b/src/main/java/com/mathgenerator/service/UserService.java
index f154390..7a6375b 100644
--- a/src/main/java/com/mathgenerator/service/UserService.java
+++ b/src/main/java/com/mathgenerator/service/UserService.java
@@ -17,6 +17,10 @@ import java.util.Optional;
 import java.util.concurrent.ConcurrentHashMap;
 import java.util.concurrent.ThreadLocalRandom;
 import java.util.regex.Pattern;
+import org.apache.commons.mail.Email;
+import org.apache.commons.mail.EmailException;
+import org.apache.commons.mail.SimpleEmail;
+
 
 public class UserService {
     private static final Path USER_FILE_PATH = Paths.get("users.json");
@@ -63,18 +67,39 @@ public class UserService {
     }
 
     /**
-     * (模拟) 发送验证码。
+     * (已更新) 发送真实的邮件验证码。
      * @param email 用户的邮箱
-     * @return 生成的6位验证码
+     * @return 成功发送则返回生成的6位验证码, 失败则返回null
      */
     public String sendVerificationCode(String email) {
         String code = String.format("%06d", ThreadLocalRandom.current().nextInt(100000, 1000000));
-        // 在真实项目中，这里会调用邮件API。我们在此处模拟。
-        System.out.println("====== 验证码模拟发送 ======");
-        System.out.println("发往邮箱: " + email);
-        System.out.println("验证码: " + code);
-        System.out.println("============================");
-        return code;
+
+        try {
+            Email mail = new SimpleEmail();
+
+            // 1. 设置SMTP服务器信息
+            mail.setHostName(EmailConfig.getHost());
+            mail.setSmtpPort(EmailConfig.getPort());
+            mail.setAuthentication(EmailConfig.getUsername(), EmailConfig.getPassword());
+            mail.setSSLOnConnect(true); // 开启SSL加密
+
+            // 2. 设置邮件内容
+            mail.setFrom(EmailConfig.getUsername()); // 发件人
+            mail.setSubject("【数学学习软件】您的注册验证码"); // 邮件主题
+            mail.setMsg("您好！\n\n感谢您注册数学学习软件。您的验证码是：" + code + "\n\n请在5分钟内使用。"); // 邮件正文
+            mail.addTo(email); // 收件人
+
+            // 3. 发送邮件
+            mail.send();
+
+            System.out.println("验证码邮件已成功发送至: " + email);
+            return code;
+
+        } catch (EmailException e) {
+            System.err.println("错误：发送验证码邮件失败！请检查您的 config.properties 配置或网络连接。");
+            e.printStackTrace();
+            return null; // 发送失败
+        }
     }
 
     /**