diff --git a/src/TaxBaik.Application/DTOs/Validators.cs b/src/TaxBaik.Application/DTOs/Validators.cs
index bcaac74..1f88560 100644
--- a/src/TaxBaik.Application/DTOs/Validators.cs
+++ b/src/TaxBaik.Application/DTOs/Validators.cs
@@ -53,3 +53,13 @@ public sealed class CreateClientDtoValidator : AbstractValidator<CreateClientDto
         RuleFor(x => x.Memo).MaximumLength(ValidationRules.MemoMaxLength);
     }
 }
+
+public sealed class FaqValidator : AbstractValidator<TaxBaik.Domain.Entities.Faq>
+{
+    public FaqValidator()
+    {
+        RuleFor(x => x.Question).NotEmpty().MaximumLength(300);
+        RuleFor(x => x.Answer).NotEmpty().MinimumLength(10).MaximumLength(5000);
+        RuleFor(x => x.Category).MaximumLength(50);
+    }
+}
diff --git a/src/TaxBaik.Application/Services/AnnouncementService.cs b/src/TaxBaik.Application/Services/AnnouncementService.cs
index 7c10b0a..8615a98 100644
--- a/src/TaxBaik.Application/Services/AnnouncementService.cs
+++ b/src/TaxBaik.Application/Services/AnnouncementService.cs
@@ -1,10 +1,11 @@
 namespace TaxBaik.Application.Services;
 
+using FluentValidation;
 using TaxBaik.Application.DTOs;
 using TaxBaik.Domain.Entities;
 using TaxBaik.Domain.Interfaces;
 
-public class AnnouncementService(IAnnouncementRepository repository)
+public class AnnouncementService(IAnnouncementRepository repository, IValidator<AnnouncementDto> validator)
 {
     public Task<IEnumerable<Announcement>> GetActiveAsync(CancellationToken ct = default)
         => repository.GetActiveAsync(ct);
@@ -17,12 +18,14 @@ public class AnnouncementService(IAnnouncementRepository repository)
 
     public Task<int> CreateAsync(AnnouncementDto dto, CancellationToken ct = default)
     {
+        validator.ValidateAndThrow(dto);
         var entity = MapToEntity(dto);
         return repository.CreateAsync(entity, ct);
     }
 
     public Task UpdateAsync(AnnouncementDto dto, CancellationToken ct = default)
     {
+        validator.ValidateAndThrow(dto);
         var entity = MapToEntity(dto);
         return repository.UpdateAsync(entity, ct);
     }
diff --git a/src/TaxBaik.Application/Services/FaqService.cs b/src/TaxBaik.Application/Services/FaqService.cs
index c071bbd..c1bdc53 100644
--- a/src/TaxBaik.Application/Services/FaqService.cs
+++ b/src/TaxBaik.Application/Services/FaqService.cs
@@ -1,9 +1,10 @@
 namespace TaxBaik.Application.Services;
 
+using FluentValidation;
 using TaxBaik.Domain.Entities;
 using TaxBaik.Domain.Interfaces;
 
-public class FaqService(IFaqRepository repository)
+public class FaqService(IFaqRepository repository, IValidator<Faq> validator)
 {
     public static readonly string[] Categories =
         ["기장세금신고", "부동산", "증여상속", "기타"];
@@ -19,24 +20,17 @@ public class FaqService(IFaqRepository repository)
 
     public async Task<int> CreateAsync(Faq faq, CancellationToken ct = default)
     {
-        Validate(faq);
+        validator.ValidateAndThrow(faq);
         return await repository.CreateAsync(faq, ct);
     }
 
     public async Task UpdateAsync(Faq faq, CancellationToken ct = default)
     {
-        Validate(faq);
+        validator.ValidateAndThrow(faq);
         await repository.UpdateAsync(faq, ct);
     }
 
     public async Task DeleteAsync(int id, CancellationToken ct = default) =>
         await repository.DeleteAsync(id, ct);
 
-    private static void Validate(Faq faq)
-    {
-        if (string.IsNullOrWhiteSpace(faq.Question))
-            throw new ValidationException("질문을 입력하세요.");
-        if (string.IsNullOrWhiteSpace(faq.Answer))
-            throw new ValidationException("답변을 입력하세요.");
-    }
 }
diff --git a/src/TaxBaik.Web/Endpoints/Announcement/AnnouncementValidators.cs b/src/TaxBaik.Web/Endpoints/Announcement/AnnouncementValidators.cs
new file mode 100644
index 0000000..eb15e73
--- /dev/null
+++ b/src/TaxBaik.Web/Endpoints/Announcement/AnnouncementValidators.cs
@@ -0,0 +1,19 @@
+namespace TaxBaik.Web.Endpoints.Announcement;
+
+using FluentValidation;
+using TaxBaik.Application.DTOs;
+
+public sealed class AnnouncementDtoValidator : AbstractValidator<AnnouncementDto>
+{
+    public AnnouncementDtoValidator()
+    {
+        RuleFor(x => x.Title)
+            .NotEmpty().WithMessage("제목을 입력하세요.")
+            .MaximumLength(ValidationRules.TitleMaxLength).WithMessage("제목은 최대 100자까지 입력 가능합니다.");
+
+        RuleFor(x => x.Content).MaximumLength(2000).WithMessage("상세 내용은 최대 2000자까지 입력 가능합니다.");
+        RuleFor(x => x.DisplayType)
+            .NotEmpty().WithMessage("표시 유형을 선택하세요.")
+            .MaximumLength(20).WithMessage("표시 유형은 최대 20자까지 입력 가능합니다.");
+    }
+}
diff --git a/src/TaxBaik.Web/Endpoints/Faq/FaqValidators.cs b/src/TaxBaik.Web/Endpoints/Faq/FaqValidators.cs
new file mode 100644
index 0000000..a3303a9
--- /dev/null
+++ b/src/TaxBaik.Web/Endpoints/Faq/FaqValidators.cs
@@ -0,0 +1,23 @@
+namespace TaxBaik.Web.Endpoints.Faq;
+
+using FluentValidation;
+
+public sealed class CreateFaqRequestValidator : AbstractValidator<CreateFaqRequest>
+{
+    public CreateFaqRequestValidator()
+    {
+        RuleFor(x => x.Question).NotEmpty().MaximumLength(300);
+        RuleFor(x => x.Answer).NotEmpty().MinimumLength(10).MaximumLength(5000);
+        RuleFor(x => x.Category).MaximumLength(50);
+    }
+}
+
+public sealed class UpdateFaqRequestValidator : AbstractValidator<UpdateFaqRequest>
+{
+    public UpdateFaqRequestValidator()
+    {
+        RuleFor(x => x.Question).NotEmpty().MaximumLength(300);
+        RuleFor(x => x.Answer).NotEmpty().MinimumLength(10).MaximumLength(5000);
+        RuleFor(x => x.Category).MaximumLength(50);
+    }
+}
diff --git a/src/TaxBaik.Web/Program.cs b/src/TaxBaik.Web/Program.cs
index eade602..98f5492 100644
--- a/src/TaxBaik.Web/Program.cs
+++ b/src/TaxBaik.Web/Program.cs
@@ -359,6 +359,7 @@ builder.Services.AddSingleton(HtmlEncoder.Create(UnicodeRanges.All));
 builder.Services.AddInfrastructure();
 builder.Services.AddApplication();
 builder.Services.AddValidatorsFromAssemblyContaining<TaxBaik.Application.DTOs.CreateBlogPostDtoValidator>();
+builder.Services.AddValidatorsFromAssemblyContaining<TaxBaik.Web.Endpoints.Announcement.AnnouncementDtoValidator>();
 builder.Services.AddScoped<IInquiryNotificationService, TelegramInquiryNotificationService>();
 builder.Services.AddScoped<TaxBaik.Web.Services.SitemapValidationService>();