diff --git a/pom.xml b/pom.xml
index 1290dc9..5074634 100644
--- a/pom.xml
+++ b/pom.xml
@@ -89,6 +89,10 @@
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-validation</artifactId>
         </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-mail</artifactId>
+        </dependency>
         <dependency>
             <groupId>com.fasterxml.jackson.module</groupId>
             <artifactId>jackson-module-kotlin</artifactId>
diff --git a/src/main/kotlin/top/fatweb/api/controller/system/SettingController.kt b/src/main/kotlin/top/fatweb/api/controller/system/SettingController.kt
new file mode 100644
index 0000000..b8ba719
--- /dev/null
+++ b/src/main/kotlin/top/fatweb/api/controller/system/SettingController.kt
@@ -0,0 +1,32 @@
+package top.fatweb.api.controller.system
+
+import io.swagger.v3.oas.annotations.Operation
+import io.swagger.v3.oas.annotations.tags.Tag
+import org.springframework.web.bind.annotation.RequestMapping
+import org.springframework.web.bind.annotation.RestController
+import top.fatweb.api.entity.common.ResponseResult
+import top.fatweb.api.param.system.SettingParam
+import top.fatweb.api.service.system.ISysSettingService
+import top.fatweb.api.vo.system.SettingVo
+
+/**
+ * System setting controller
+ *
+ * @author FatttSnake, fatttsnake@gmail.com
+ * @since 1.0.0
+ */
+@Tag(name = "系统设置", description = "系统设置相关接口")
+@RequestMapping("/system/setting")
+@RestController
+class SettingController(
+    private val sysSettingService: ISysSettingService
+) {
+    @Operation(summary = "获取")
+    fun get(): ResponseResult<SettingVo> = ResponseResult.success(data = sysSettingService.get())
+
+    @Operation(summary = "更新")
+    fun update(settingParam: SettingParam): ResponseResult<Nothing> {
+        sysSettingService.update(settingParam)
+        return ResponseResult.success()
+    }
+}
\ No newline at end of file
diff --git a/src/main/kotlin/top/fatweb/api/converter/system/SettingConverter.kt b/src/main/kotlin/top/fatweb/api/converter/system/SettingConverter.kt
new file mode 100644
index 0000000..5a920fa
--- /dev/null
+++ b/src/main/kotlin/top/fatweb/api/converter/system/SettingConverter.kt
@@ -0,0 +1,32 @@
+package top.fatweb.api.converter.system
+
+import top.fatweb.api.param.system.SettingParam
+import top.fatweb.api.setting.MailSetting
+import top.fatweb.api.setting.SystemSetting
+import top.fatweb.api.vo.system.SettingVo
+
+object SettingConverter {
+    fun mailSettingToMailSettingVo(mailSetting: MailSetting) = SettingVo.MailSettingVo(
+        host = mailSetting.host,
+        port = mailSetting.port,
+        username = mailSetting.username,
+        password = mailSetting.password,
+        from = mailSetting.from
+    )
+
+    fun systemSettingToSettingVo(sysSetting: SystemSetting) = SettingVo(
+        mail = sysSetting.mail?.let { mailSettingToMailSettingVo(it) }
+    )
+
+    fun mailSettingParamToMailSetting(mailSettingParam: SettingParam.MailSettingParam) = MailSetting(
+        host = mailSettingParam.host,
+        port = mailSettingParam.port,
+        username = mailSettingParam.username,
+        password = mailSettingParam.password,
+        from = mailSettingParam.from
+    )
+
+    fun settingParamToSystemSetting(settingParam: SettingParam) = SystemSetting(
+        mail = settingParam.mail?.let { mailSettingParamToMailSetting(it) }
+    )
+}
\ No newline at end of file
diff --git a/src/main/kotlin/top/fatweb/api/param/system/SettingParam.kt b/src/main/kotlin/top/fatweb/api/param/system/SettingParam.kt
new file mode 100644
index 0000000..f98b4ae
--- /dev/null
+++ b/src/main/kotlin/top/fatweb/api/param/system/SettingParam.kt
@@ -0,0 +1,13 @@
+package top.fatweb.api.param.system
+
+data class SettingParam (
+    val mail: MailSettingParam?
+) {
+    data class MailSettingParam (
+        val host: String,
+        val port: Int,
+        val username: String,
+        val password: String,
+        val from: String
+    )
+}
\ No newline at end of file
diff --git a/src/main/kotlin/top/fatweb/api/service/system/ISysSettingService.kt b/src/main/kotlin/top/fatweb/api/service/system/ISysSettingService.kt
new file mode 100644
index 0000000..2cea670
--- /dev/null
+++ b/src/main/kotlin/top/fatweb/api/service/system/ISysSettingService.kt
@@ -0,0 +1,10 @@
+package top.fatweb.api.service.system
+
+import top.fatweb.api.param.system.SettingParam
+import top.fatweb.api.vo.system.SettingVo
+
+interface ISysSettingService {
+    fun get(): SettingVo
+
+    fun update(settingParam: SettingParam)
+}
\ No newline at end of file
diff --git a/src/main/kotlin/top/fatweb/api/service/system/impl/SysSettingServiceImpl.kt b/src/main/kotlin/top/fatweb/api/service/system/impl/SysSettingServiceImpl.kt
new file mode 100644
index 0000000..50c32c9
--- /dev/null
+++ b/src/main/kotlin/top/fatweb/api/service/system/impl/SysSettingServiceImpl.kt
@@ -0,0 +1,17 @@
+package top.fatweb.api.service.system.impl
+
+import org.springframework.stereotype.Service
+import top.fatweb.api.param.system.SettingParam
+import top.fatweb.api.service.system.ISysSettingService
+import top.fatweb.api.vo.system.SettingVo
+
+@Service
+class SysSettingServiceImpl : ISysSettingService {
+    override fun get(): SettingVo {
+        TODO("Not yet implemented")
+    }
+
+    override fun update(settingParam: SettingParam) {
+        TODO("Not yet implemented")
+    }
+}
\ No newline at end of file
diff --git a/src/main/kotlin/top/fatweb/api/setting/MailSetting.kt b/src/main/kotlin/top/fatweb/api/setting/MailSetting.kt
new file mode 100644
index 0000000..1b993ce
--- /dev/null
+++ b/src/main/kotlin/top/fatweb/api/setting/MailSetting.kt
@@ -0,0 +1,9 @@
+package top.fatweb.api.setting
+
+data class MailSetting(
+    var host: String? = null,
+    var port: Int? = null,
+    var username: String? = null,
+    var password: String? = null,
+    var from: String? = null,
+)
\ No newline at end of file
diff --git a/src/main/kotlin/top/fatweb/api/setting/SettingOperator.kt b/src/main/kotlin/top/fatweb/api/setting/SettingOperator.kt
new file mode 100644
index 0000000..c01b5dc
--- /dev/null
+++ b/src/main/kotlin/top/fatweb/api/setting/SettingOperator.kt
@@ -0,0 +1,31 @@
+package top.fatweb.api.setting
+
+import com.fasterxml.jackson.dataformat.yaml.YAMLMapper
+import com.fasterxml.jackson.module.kotlin.readValue
+import java.io.File
+import java.io.IOException
+
+object SettingOperator {
+    const val SETTING_FILE_NAME = "data/config/setting.yaml"
+    private val yamlMapper = YAMLMapper()
+
+    var systemSetting: SystemSetting? = null
+
+    fun init() {
+
+    }
+
+    fun getFromSettingFile(): SystemSetting {
+        val settingFile = File(SETTING_FILE_NAME)
+        if (!settingFile.isFile) {
+            if (!settingFile.parentFile.isDirectory) {
+                if (!settingFile.parentFile.mkdirs()) {
+                    throw IOException("Can not make directory: ${settingFile.parentFile.absolutePath}")
+                }
+            }
+            settingFile.delete()
+            settingFile.createNewFile()
+        }
+        return yamlMapper.readValue<SystemSetting>(settingFile)
+    }
+}
\ No newline at end of file
diff --git a/src/main/kotlin/top/fatweb/api/setting/SystemSetting.kt b/src/main/kotlin/top/fatweb/api/setting/SystemSetting.kt
new file mode 100644
index 0000000..4dbe09e
--- /dev/null
+++ b/src/main/kotlin/top/fatweb/api/setting/SystemSetting.kt
@@ -0,0 +1,5 @@
+package top.fatweb.api.setting
+
+data class SystemSetting(
+    var mail: MailSetting? = null
+)
diff --git a/src/main/kotlin/top/fatweb/api/vo/system/SettingVo.kt b/src/main/kotlin/top/fatweb/api/vo/system/SettingVo.kt
new file mode 100644
index 0000000..ba5e9c5
--- /dev/null
+++ b/src/main/kotlin/top/fatweb/api/vo/system/SettingVo.kt
@@ -0,0 +1,13 @@
+package top.fatweb.api.vo.system
+
+data class SettingVo(
+    val mail: MailSettingVo?
+) {
+    data class MailSettingVo(
+        val host: String?,
+        val port: Int?,
+        val username: String?,
+        val password: String?,
+        val from: String?
+    )
+}
\ No newline at end of file