diff --git a/SPMS.API/Controllers/AppConfigController.cs b/SPMS.API/Controllers/AppConfigController.cs
new file mode 100644
index 0000000..57c9afe
--- /dev/null
+++ b/SPMS.API/Controllers/AppConfigController.cs
@@ -0,0 +1,32 @@
+using Microsoft.AspNetCore.Mvc;
+using Swashbuckle.AspNetCore.Annotations;
+using SPMS.Application.DTOs.AppConfig;
+using SPMS.Application.Interfaces;
+using SPMS.Domain.Common;
+
+namespace SPMS.API.Controllers;
+
+[ApiController]
+[Route("v1/in/public")]
+[ApiExplorerSettings(GroupName = "public")]
+public class AppConfigController : ControllerBase
+{
+    private readonly IAppConfigService _appConfigService;
+
+    public AppConfigController(IAppConfigService appConfigService)
+    {
+        _appConfigService = appConfigService;
+    }
+
+    [HttpPost("config")]
+    [SwaggerOperation(Summary = "앱 기본 설정", Description = "앱 기본 설정 정보를 조회합니다.")]
+    public async Task<IActionResult> GetAppSettingsAsync()
+    {
+        var serviceCode = Request.Headers["X-Service-Code"].FirstOrDefault();
+        if (string.IsNullOrWhiteSpace(serviceCode))
+            return BadRequest(ApiResponse.Fail(ErrorCodes.BadRequest, "X-Service-Code 헤더가 필요합니다."));
+
+        var result = await _appConfigService.GetAppSettingsAsync(serviceCode);
+        return Ok(ApiResponse<AppSettingsResponseDto>.Success(result));
+    }
+}
diff --git a/SPMS.Application/DTOs/AppConfig/AppSettingsResponseDto.cs b/SPMS.Application/DTOs/AppConfig/AppSettingsResponseDto.cs
new file mode 100644
index 0000000..22d3177
--- /dev/null
+++ b/SPMS.Application/DTOs/AppConfig/AppSettingsResponseDto.cs
@@ -0,0 +1,21 @@
+using System.Text.Json.Serialization;
+
+namespace SPMS.Application.DTOs.AppConfig;
+
+public class AppSettingsResponseDto
+{
+    [JsonPropertyName("min_app_version")]
+    public string? MinAppVersion { get; set; }
+
+    [JsonPropertyName("is_maintenance")]
+    public bool IsMaintenance { get; set; }
+
+    [JsonPropertyName("maintenance_msg")]
+    public string? MaintenanceMsg { get; set; }
+
+    [JsonPropertyName("cs_email")]
+    public string? CsEmail { get; set; }
+
+    [JsonPropertyName("cs_phone")]
+    public string? CsPhone { get; set; }
+}
diff --git a/SPMS.Application/Interfaces/IAppConfigService.cs b/SPMS.Application/Interfaces/IAppConfigService.cs
index b9e84b6..f8fccbd 100644
--- a/SPMS.Application/Interfaces/IAppConfigService.cs
+++ b/SPMS.Application/Interfaces/IAppConfigService.cs
@@ -7,4 +7,5 @@ public interface IAppConfigService
     Task<AppConfigResponseDto> GetTermsAsync(string serviceCode);
     Task<AppConfigResponseDto> GetPrivacyAsync(string serviceCode);
     Task<AppVersionResponseDto> GetAppVersionAsync(string serviceCode, AppVersionRequestDto request);
+    Task<AppSettingsResponseDto> GetAppSettingsAsync(string serviceCode);
 }
diff --git a/SPMS.Application/Services/AppConfigService.cs b/SPMS.Application/Services/AppConfigService.cs
index 966827e..0b0ca31 100644
--- a/SPMS.Application/Services/AppConfigService.cs
+++ b/SPMS.Application/Services/AppConfigService.cs
@@ -49,6 +49,25 @@ public class AppConfigService : IAppConfigService
         };
     }
 
+    public async Task<AppSettingsResponseDto> GetAppSettingsAsync(string serviceCode)
+    {
+        var service = await _serviceRepository.GetByServiceCodeAsync(serviceCode);
+        if (service == null)
+            throw new SpmsException(ErrorCodes.NotFound, "존재하지 않는 서비스입니다.", 404);
+
+        var configs = await _appConfigRepository.GetAllByServiceAsync(service.Id);
+        var configDict = configs.ToDictionary(c => c.ConfigKey, c => c.ConfigValue);
+
+        return new AppSettingsResponseDto
+        {
+            MinAppVersion = configDict.GetValueOrDefault("min_version"),
+            IsMaintenance = string.Equals(configDict.GetValueOrDefault("maintenance_mode"), "true", StringComparison.OrdinalIgnoreCase),
+            MaintenanceMsg = configDict.GetValueOrDefault("maintenance_message"),
+            CsEmail = configDict.GetValueOrDefault("cs_email"),
+            CsPhone = configDict.GetValueOrDefault("cs_phone")
+        };
+    }
+
     private async Task<AppConfigResponseDto> GetConfigUrlAsync(string serviceCode, string configKey)
     {
         var service = await _serviceRepository.GetByServiceCodeAsync(serviceCode);
diff --git a/SPMS.Domain/Interfaces/IAppConfigRepository.cs b/SPMS.Domain/Interfaces/IAppConfigRepository.cs
index e61c187..01cf381 100644
--- a/SPMS.Domain/Interfaces/IAppConfigRepository.cs
+++ b/SPMS.Domain/Interfaces/IAppConfigRepository.cs
@@ -5,4 +5,5 @@ namespace SPMS.Domain.Interfaces;
 public interface IAppConfigRepository : IRepository<AppConfig>
 {
     Task<AppConfig?> GetByKeyAsync(long serviceId, string configKey);
+    Task<IReadOnlyList<AppConfig>> GetAllByServiceAsync(long serviceId);
 }
diff --git a/SPMS.Infrastructure/Persistence/Repositories/AppConfigRepository.cs b/SPMS.Infrastructure/Persistence/Repositories/AppConfigRepository.cs
index d4f4a34..8079bde 100644
--- a/SPMS.Infrastructure/Persistence/Repositories/AppConfigRepository.cs
+++ b/SPMS.Infrastructure/Persistence/Repositories/AppConfigRepository.cs
@@ -12,4 +12,9 @@ public class AppConfigRepository : Repository<AppConfig>, IAppConfigRepository
     {
         return await _dbSet.FirstOrDefaultAsync(c => c.ServiceId == serviceId && c.ConfigKey == configKey);
     }
+
+    public async Task<IReadOnlyList<AppConfig>> GetAllByServiceAsync(long serviceId)
+    {
+        return await _dbSet.Where(c => c.ServiceId == serviceId).ToListAsync();
+    }
 }