diff --git a/src/modules/comment/application/use-cases/list-comments/list-comments.query.ts b/src/modules/comment/application/use-cases/list-comments/list-comments.query.ts
index 10f1ecf..1211fb1 100644
--- a/src/modules/comment/application/use-cases/list-comments/list-comments.query.ts
+++ b/src/modules/comment/application/use-cases/list-comments/list-comments.query.ts
@@ -1,8 +1,11 @@
+import type { CommentListDirection } from '../../../domain/repositories/comment.repository.interface.js';
+
 export class ListCommentsQuery {
   constructor(
     public readonly issueId: number,
     public readonly userId: string,
     public readonly limit: number,
     public readonly cursor?: string,
+    public readonly direction: CommentListDirection = 'forward',
   ) {}
 }
diff --git a/src/modules/comment/application/use-cases/list-comments/list-comments.use-case.spec.ts b/src/modules/comment/application/use-cases/list-comments/list-comments.use-case.spec.ts
index 504d572..f18b50e 100644
--- a/src/modules/comment/application/use-cases/list-comments/list-comments.use-case.spec.ts
+++ b/src/modules/comment/application/use-cases/list-comments/list-comments.use-case.spec.ts
@@ -32,11 +32,30 @@ describe('ListCommentsUseCase', () => {
 
     const result = await useCase.execute(new ListCommentsQuery(1, 'user-1', 1, 'comment-1'));
 
-    expect(commentRepository.findByIssue).toHaveBeenCalledWith({ issueId: 1, limit: 1, cursor: 'comment-1' });
+    expect(commentRepository.findByIssue).toHaveBeenCalledWith({
+      issueId: 1,
+      limit: 1,
+      cursor: 'comment-1',
+      direction: 'forward',
+    });
     expect(result.list.map((comment) => comment.id)).toEqual(['comment-2']);
     expect(result.nextCursor).toBe('comment-2');
   });
 
+  it('forwards the backward direction for chat-style paging', async () => {
+    vi.mocked(issueRepository.findById).mockResolvedValue(buildIssue());
+    vi.mocked(commentRepository.findByIssue).mockResolvedValue({ list: [], nextCursor: null });
+
+    await useCase.execute(new ListCommentsQuery(1, 'user-1', 20, 'comment-5', 'backward'));
+
+    expect(commentRepository.findByIssue).toHaveBeenCalledWith({
+      issueId: 1,
+      limit: 20,
+      cursor: 'comment-5',
+      direction: 'backward',
+    });
+  });
+
   it('throws IssueNotFoundException when the issue is not visible to the user', async () => {
     vi.mocked(issueRepository.findById).mockResolvedValue(null);
 
diff --git a/src/modules/comment/application/use-cases/list-comments/list-comments.use-case.ts b/src/modules/comment/application/use-cases/list-comments/list-comments.use-case.ts
index e63bd7d..ecc3472 100644
--- a/src/modules/comment/application/use-cases/list-comments/list-comments.use-case.ts
+++ b/src/modules/comment/application/use-cases/list-comments/list-comments.use-case.ts
@@ -32,6 +32,7 @@ export class ListCommentsUseCase {
       issueId: query.issueId,
       limit: query.limit,
       cursor: query.cursor,
+      direction: query.direction,
     });
 
     return { list: await this.commentExpander.expandAll(list), nextCursor };
diff --git a/src/modules/comment/domain/repositories/comment.repository.interface.ts b/src/modules/comment/domain/repositories/comment.repository.interface.ts
index 207c4cd..9ccff41 100644
--- a/src/modules/comment/domain/repositories/comment.repository.interface.ts
+++ b/src/modules/comment/domain/repositories/comment.repository.interface.ts
@@ -1,5 +1,9 @@
 import { Comment } from '../entities/comment.entity.js';
 
+/** Направление пагинации комментариев: forward — от старых к новым, backward — от новых к старым */
+export const COMMENT_LIST_DIRECTIONS = ['forward', 'backward'] as const;
+export type CommentListDirection = (typeof COMMENT_LIST_DIRECTIONS)[number];
+
 /** DI-токен, т.к. интерфейсы стираются при компиляции TS */
 export const COMMENT_REPOSITORY = Symbol('COMMENT_REPOSITORY');
 
@@ -8,12 +12,16 @@ export interface ICommentRepository {
   findById(id: string): Promise<Comment | null>;
   /**
    * Комментарии задачи от старых к новым, включая удалённые.
-   * Курсорная пагинация: cursor — id последнего полученного комментария.
+   * Курсорная пагинация. forward: cursor — id последнего полученного комментария,
+   * отдаются более новые. backward: cursor — id самого старого полученного,
+   * отдаются более старые (без cursor — последняя страница). Список всегда
+   * отсортирован от старых к новым.
    */
   findByIssue(params: {
     issueId: number;
     limit: number;
     cursor?: string;
+    direction?: CommentListDirection;
   }): Promise<{ list: Comment[]; nextCursor: string | null }>;
   /**
    * Создание и обновление сохраняют и вложения (fileIds) — атомарно с комментарием.
diff --git a/src/modules/comment/infrastructure/persistence/prisma/repositories/comment.prisma-repository.ts b/src/modules/comment/infrastructure/persistence/prisma/repositories/comment.prisma-repository.ts
index f0999e6..d2770ff 100644
--- a/src/modules/comment/infrastructure/persistence/prisma/repositories/comment.prisma-repository.ts
+++ b/src/modules/comment/infrastructure/persistence/prisma/repositories/comment.prisma-repository.ts
@@ -2,7 +2,10 @@ import { Injectable } from '@nestjs/common';
 import { PrismaAdapter } from '../../../../../../common/prisma-adapter/prisma.adapter.js';
 import { Prisma } from '../../../../../../generated/prisma/client.js';
 import { Comment } from '../../../../domain/entities/comment.entity.js';
-import { ICommentRepository } from '../../../../domain/repositories/comment.repository.interface.js';
+import type {
+  CommentListDirection,
+  ICommentRepository,
+} from '../../../../domain/repositories/comment.repository.interface.js';
 import { CommentPrismaMapper } from '../mappers/comment.mapper.js';
 import { IssueNotFoundException } from '../../../../../issue/domain/exceptions/issue-not-found.exception.js';
 import { FileNotFoundException } from '../../../../../file/domain/exceptions/file-not-found.exception.js';
@@ -27,26 +30,29 @@ export class CommentPrismaRepository implements ICommentRepository {
     issueId: number;
     limit: number;
     cursor?: string;
+    direction?: CommentListDirection;
   }): Promise<{ list: Comment[]; nextCursor: string | null }> {
     const limit = Math.max(1, params.limit);
+    const order = params.direction === 'backward' ? 'desc' : 'asc';
 
     // Берём на одну запись больше, чтобы понять, есть ли следующая страница.
     // id (uuid v7) — тай-брейкер для комментариев с одинаковым createdAt.
     const records = await this.prisma.comment.findMany({
       where: { issueId: params.issueId },
       include: COMMENT_INCLUDE,
-      orderBy: [{ createdAt: 'asc' }, { id: 'asc' }],
+      orderBy: [{ createdAt: order }, { id: order }],
       take: limit + 1,
       ...(params.cursor ? { cursor: { id: params.cursor }, skip: 1 } : {}),
     });
 
     const hasMore = records.length > limit;
     const page = hasMore ? records.slice(0, limit) : records;
+    // Курсор — последняя запись страницы в порядке выборки: для backward это самая старая
+    const nextCursor = hasMore ? page[page.length - 1]!.id : null;
 
-    return {
-      list: page.map(CommentPrismaMapper.toDomain),
-      nextCursor: hasMore ? page[page.length - 1]!.id : null,
-    };
+    if (order === 'desc') page.reverse();
+
+    return { list: page.map(CommentPrismaMapper.toDomain), nextCursor };
   }
 
   async create(comment: Comment): Promise<Comment> {
diff --git a/src/modules/comment/presentation/controllers/comment.controller.ts b/src/modules/comment/presentation/controllers/comment.controller.ts
index 229cbc0..4aeaaa5 100644
--- a/src/modules/comment/presentation/controllers/comment.controller.ts
+++ b/src/modules/comment/presentation/controllers/comment.controller.ts
@@ -56,7 +56,7 @@ export class CommentController {
   ) {
     return this.handleErrors(() =>
       this.listCommentsUseCase.execute(
-        new ListCommentsQuery(issueId, session.user.id, Number(query.limit), query.cursor),
+        new ListCommentsQuery(issueId, session.user.id, Number(query.limit), query.cursor, query.direction),
       ),
     );
   }
diff --git a/src/modules/comment/presentation/dto/list-comments.dto.ts b/src/modules/comment/presentation/dto/list-comments.dto.ts
index 40b5c81..fe72247 100644
--- a/src/modules/comment/presentation/dto/list-comments.dto.ts
+++ b/src/modules/comment/presentation/dto/list-comments.dto.ts
@@ -1,4 +1,9 @@
+import { IsIn, IsOptional } from 'class-validator';
 import { IntDecorator, StringDecorator } from '../../../../common/decorators/validators.js';
+import {
+  COMMENT_LIST_DIRECTIONS,
+  type CommentListDirection,
+} from '../../domain/repositories/comment.repository.interface.js';
 
 export class ListCommentsDto {
   @IntDecorator({ isOptional: true, min: 1, max: 100 })
@@ -7,4 +12,13 @@ export class ListCommentsDto {
   /** id последнего полученного комментария (nextCursor из предыдущего ответа) */
   @StringDecorator({ isOptional: true })
   cursor?: string;
+
+  /**
+   * forward — от старых к новым, cursor — последний полученный (новые после него).
+   * backward — страницы от новых к старым (для чата), cursor — самый старый полученный.
+   * В обоих случаях список в ответе отсортирован от старых к новым.
+   */
+  @IsOptional()
+  @IsIn(COMMENT_LIST_DIRECTIONS)
+  direction: CommentListDirection = 'forward';
 }