diff --git a/backend/src/main/java/com/qqchen/deploy/backend/deploy/dto/ServerDTO.java b/backend/src/main/java/com/qqchen/deploy/backend/deploy/dto/ServerDTO.java
index d0a5529e..2bd80c09 100644
--- a/backend/src/main/java/com/qqchen/deploy/backend/deploy/dto/ServerDTO.java
+++ b/backend/src/main/java/com/qqchen/deploy/backend/deploy/dto/ServerDTO.java
@@ -1,5 +1,6 @@
 package com.qqchen.deploy.backend.deploy.dto;
 
+import com.qqchen.deploy.backend.deploy.enums.AuthTypeEnum;
 import com.qqchen.deploy.backend.deploy.enums.OsTypeEnum;
 import com.qqchen.deploy.backend.deploy.enums.ServerStatusEnum;
 import com.qqchen.deploy.backend.framework.dto.BaseDTO;
@@ -34,6 +35,26 @@ public class ServerDTO extends BaseDTO {
      */
     private String sshUser;
 
+    /**
+     * 认证方式
+     */
+    private AuthTypeEnum authType;
+
+    /**
+     * SSH密码（加密存储）
+     */
+    private String sshPassword;
+
+    /**
+     * SSH私钥（加密存储）
+     */
+    private String sshPrivateKey;
+
+    /**
+     * 私钥密码（加密存储）
+     */
+    private String sshPassphrase;
+
     /**
      * 服务器分类ID
      */
diff --git a/backend/src/main/java/com/qqchen/deploy/backend/deploy/entity/Server.java b/backend/src/main/java/com/qqchen/deploy/backend/deploy/entity/Server.java
index 58eec706..b490bdfa 100644
--- a/backend/src/main/java/com/qqchen/deploy/backend/deploy/entity/Server.java
+++ b/backend/src/main/java/com/qqchen/deploy/backend/deploy/entity/Server.java
@@ -1,5 +1,6 @@
 package com.qqchen.deploy.backend.deploy.entity;
 
+import com.qqchen.deploy.backend.deploy.enums.AuthTypeEnum;
 import com.qqchen.deploy.backend.deploy.enums.OsTypeEnum;
 import com.qqchen.deploy.backend.deploy.enums.ServerStatusEnum;
 import com.qqchen.deploy.backend.framework.domain.Entity;
@@ -41,6 +42,31 @@ public class Server extends Entity<Long> {
     @Column(name = "ssh_user", length = 50)
     private String sshUser;
 
+    /**
+     * 认证方式
+     */
+    @Enumerated(EnumType.STRING)
+    @Column(name = "auth_type", length = 20)
+    private AuthTypeEnum authType;
+
+    /**
+     * SSH密码（加密存储）
+     */
+    @Column(name = "ssh_password", length = 500)
+    private String sshPassword;
+
+    /**
+     * SSH私钥（加密存储）
+     */
+    @Column(name = "ssh_private_key", columnDefinition = "TEXT")
+    private String sshPrivateKey;
+
+    /**
+     * 私钥密码（加密存储）
+     */
+    @Column(name = "ssh_passphrase", length = 500)
+    private String sshPassphrase;
+
     /**
      * 服务器分类ID
      */
diff --git a/backend/src/main/java/com/qqchen/deploy/backend/deploy/enums/AuthTypeEnum.java b/backend/src/main/java/com/qqchen/deploy/backend/deploy/enums/AuthTypeEnum.java
new file mode 100644
index 00000000..ca79b792
--- /dev/null
+++ b/backend/src/main/java/com/qqchen/deploy/backend/deploy/enums/AuthTypeEnum.java
@@ -0,0 +1,19 @@
+package com.qqchen.deploy.backend.deploy.enums;
+
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+/**
+ * SSH认证方式枚举
+ */
+@Getter
+@AllArgsConstructor
+public enum AuthTypeEnum {
+    
+    PASSWORD("密码认证", "使用用户名和密码进行SSH认证"),
+    KEY("密钥认证", "使用SSH私钥进行认证");
+    
+    private final String name;
+    private final String description;
+}
+
diff --git a/backend/src/main/java/com/qqchen/deploy/backend/deploy/query/ServerQuery.java b/backend/src/main/java/com/qqchen/deploy/backend/deploy/query/ServerQuery.java
index 7512bd01..ffea80a5 100644
--- a/backend/src/main/java/com/qqchen/deploy/backend/deploy/query/ServerQuery.java
+++ b/backend/src/main/java/com/qqchen/deploy/backend/deploy/query/ServerQuery.java
@@ -1,5 +1,6 @@
 package com.qqchen.deploy.backend.deploy.query;
 
+import com.qqchen.deploy.backend.deploy.enums.AuthTypeEnum;
 import com.qqchen.deploy.backend.deploy.enums.OsTypeEnum;
 import com.qqchen.deploy.backend.deploy.enums.ServerStatusEnum;
 import com.qqchen.deploy.backend.framework.annotation.QueryField;
@@ -33,6 +34,12 @@ public class ServerQuery extends BaseQuery {
     @QueryField(field = "categoryId")
     private Long categoryId;
 
+    /**
+     * 认证方式
+     */
+    @QueryField(field = "authType")
+    private AuthTypeEnum authType;
+
     /**
      * 操作系统类型
      */
diff --git a/backend/src/main/resources/db/changelog/changes/v1.0.0-schema.sql b/backend/src/main/resources/db/changelog/changes/v1.0.0-schema.sql
index 85d95c54..39f8cf2f 100644
--- a/backend/src/main/resources/db/changelog/changes/v1.0.0-schema.sql
+++ b/backend/src/main/resources/db/changelog/changes/v1.0.0-schema.sql
@@ -1030,6 +1030,10 @@ CREATE TABLE deploy_server (
     host_ip           VARCHAR(50)  NOT NULL UNIQUE COMMENT 'IP地址',
     ssh_port          INT          DEFAULT 22 COMMENT 'SSH端口',
     ssh_user          VARCHAR(50)  NULL COMMENT 'SSH用户名',
+    auth_type         VARCHAR(20)  DEFAULT 'PASSWORD' COMMENT '认证方式：PASSWORD/KEY',
+    ssh_password      VARCHAR(500) NULL COMMENT 'SSH密码（加密存储）',
+    ssh_private_key   TEXT         NULL COMMENT 'SSH私钥（加密存储）',
+    ssh_passphrase    VARCHAR(500) NULL COMMENT '私钥密码（加密存储）',
     category_id       BIGINT       NULL COMMENT '服务器分类ID',
     os_type           VARCHAR(20)  NULL COMMENT '操作系统类型：LINUX/WINDOWS/MACOS/UNIX/OTHER',
     os_version        VARCHAR(100) NULL COMMENT '操作系统版本：CentOS 7.9',