diff --git a/experiments/test_message_limits.py b/experiments/test_message_limits.py
new file mode 100644
index 00000000..03e912af
--- /dev/null
+++ b/experiments/test_message_limits.py
@@ -0,0 +1,59 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+"""Test script for message limiting functionality"""
+
+import sys
+import os
+sys.path.append(os.path.join(os.path.dirname(__file__), '..', 'python'))
+
+from modules.utils import get_daily_message_limit
+
+def test_message_limits():
+    """Test the daily message limit function"""
+    
+    # Test cases based on the issue requirements
+    test_cases = [
+        # (karma, expected_limit)
+        (0, -1),      # No limit for karma >= -10
+        (-5, -1),     # No limit for karma >= -10
+        (-10, 64),    # 64 messages for karma < -10 and >= -20
+        (-15, 64),    # 64 messages for karma < -10 and >= -20
+        (-20, 32),    # 32 messages for karma < -20 and >= -40
+        (-30, 32),    # 32 messages for karma < -20 and >= -40
+        (-40, 16),    # 16 messages for karma < -40 and >= -80
+        (-60, 16),    # 16 messages for karma < -40 and >= -80
+        (-80, 8),     # 8 messages for karma < -80 and >= -160
+        (-120, 8),    # 8 messages for karma < -80 and >= -160
+        (-160, 4),    # 4 messages for karma < -160 and >= -320
+        (-240, 4),    # 4 messages for karma < -160 and >= -320
+        (-320, 2),    # 2 messages for karma < -320 and >= -640
+        (-480, 2),    # 2 messages for karma < -320 and >= -640
+        (-640, 1),    # 1 message for karma < -640 and >= -1280
+        (-960, 1),    # 1 message for karma < -640 and >= -1280
+        (-1280, 0),   # Read-only mode for karma < -1280
+        (-2000, 0),   # Read-only mode for karma < -1280
+    ]
+    
+    print("Testing daily message limits based on karma:")
+    print("=" * 50)
+    
+    all_passed = True
+    for karma, expected_limit in test_cases:
+        actual_limit = get_daily_message_limit(karma)
+        status = "✓ PASS" if actual_limit == expected_limit else "✗ FAIL"
+        
+        if actual_limit != expected_limit:
+            all_passed = False
+            
+        print(f"Karma: {karma:5d} | Expected: {expected_limit:3d} | Got: {actual_limit:3d} | {status}")
+    
+    print("=" * 50)
+    if all_passed:
+        print("🎉 All tests passed!")
+    else:
+        print("❌ Some tests failed!")
+    
+    return all_passed
+
+if __name__ == "__main__":
+    test_message_limits()
\ No newline at end of file
diff --git a/experiments/test_message_limits_simple.py b/experiments/test_message_limits_simple.py
new file mode 100644
index 00000000..3cd03559
--- /dev/null
+++ b/experiments/test_message_limits_simple.py
@@ -0,0 +1,86 @@
+#!/usr/bin/env python3
+"""Standalone test for message limiting logic"""
+
+def get_daily_message_limit(karma: int) -> int:
+    """Returns daily message limit based on karma level.
+    
+    :param karma: user's karma value
+    :return: maximum number of messages allowed per day
+    """
+    if karma > -10:
+        return -1  # No limit
+    elif karma > -20:
+        return 64
+    elif karma > -40:
+        return 32
+    elif karma > -80:
+        return 16
+    elif karma > -160:
+        return 8
+    elif karma > -320:
+        return 4
+    elif karma > -640:
+        return 2
+    elif karma > -1280:
+        return 1
+    else:
+        return 0  # Read-only mode
+
+
+def test_message_limits():
+    """Test the daily message limit function"""
+    
+    # Test cases based on the issue requirements
+    test_cases = [
+        # (karma, expected_limit)
+        (0, -1),      # No limit for karma > -10
+        (-5, -1),     # No limit for karma > -10
+        (-9, -1),     # No limit for karma > -10
+        (-10, 64),    # 64 messages for karma < -10 and >= -20
+        (-15, 64),    # 64 messages for karma < -10 and >= -20
+        (-19, 64),    # 64 messages for karma < -10 and >= -20
+        (-20, 32),    # 32 messages for karma < -20 and >= -40
+        (-30, 32),    # 32 messages for karma < -20 and >= -40
+        (-39, 32),    # 32 messages for karma < -20 and >= -40
+        (-40, 16),    # 16 messages for karma < -40 and >= -80
+        (-60, 16),    # 16 messages for karma < -40 and >= -80
+        (-79, 16),    # 16 messages for karma < -40 and >= -80
+        (-80, 8),     # 8 messages for karma < -80 and >= -160
+        (-120, 8),    # 8 messages for karma < -80 and >= -160
+        (-159, 8),    # 8 messages for karma < -80 and >= -160
+        (-160, 4),    # 4 messages for karma < -160 and >= -320
+        (-240, 4),    # 4 messages for karma < -160 and >= -320
+        (-319, 4),    # 4 messages for karma < -160 and >= -320
+        (-320, 2),    # 2 messages for karma < -320 and >= -640
+        (-480, 2),    # 2 messages for karma < -320 and >= -640
+        (-639, 2),    # 2 messages for karma < -320 and >= -640
+        (-640, 1),    # 1 message for karma < -640 and >= -1280
+        (-960, 1),    # 1 message for karma < -640 and >= -1280
+        (-1279, 1),   # 1 message for karma < -640 and >= -1280
+        (-1280, 0),   # Read-only mode for karma < -1280
+        (-2000, 0),   # Read-only mode for karma < -1280
+    ]
+    
+    print("Testing daily message limits based on karma:")
+    print("=" * 50)
+    
+    all_passed = True
+    for karma, expected_limit in test_cases:
+        actual_limit = get_daily_message_limit(karma)
+        status = "✓ PASS" if actual_limit == expected_limit else "✗ FAIL"
+        
+        if actual_limit != expected_limit:
+            all_passed = False
+            
+        print(f"Karma: {karma:5d} | Expected: {expected_limit:3d} | Got: {actual_limit:3d} | {status}")
+    
+    print("=" * 50)
+    if all_passed:
+        print("🎉 All tests passed!")
+    else:
+        print("❌ Some tests failed!")
+    
+    return all_passed
+
+if __name__ == "__main__":
+    test_message_limits()
\ No newline at end of file
diff --git a/python/__main__.py b/python/__main__.py
index cdcbf7f6..5c29d976 100644
--- a/python/__main__.py
+++ b/python/__main__.py
@@ -10,6 +10,7 @@
 from modules import (
     BetterBotBaseDataService, Commands
 )
+from modules.utils import get_daily_message_limit
 from tokens import BOT_TOKEN
 from userbot import UserBot
 import patterns
@@ -99,6 +100,40 @@ def message_new(
 
         user = self.data.get_user(from_id, self) if from_id > 0 else None
 
+        # Check daily message limit for users with negative karma
+        if user and peer_id >= CHAT_ID_OFFSET:  # Only apply limits in group chats
+            current_date = datetime.now().strftime("%Y-%m-%d")
+            
+            # Reset daily message count if it's a new day
+            if user.last_message_date != current_date:
+                user.daily_message_count = 0
+                user.last_message_date = current_date
+                self.data.save_user(user)
+            
+            # Check if user has exceeded their daily message limit
+            daily_limit = get_daily_message_limit(user.karma)
+            if daily_limit >= 0:  # -1 means no limit
+                if user.daily_message_count >= daily_limit:
+                    if daily_limit == 0:
+                        # Read-only mode - delete message and notify
+                        self.delete_message(peer_id, msg_id, 0)
+                        self.send_msg(
+                            f"[id{from_id}|Пользователь] находится в режиме только для чтения (карма < -1280).",
+                            peer_id
+                        )
+                    else:
+                        # Message limit exceeded - delete message and notify
+                        self.delete_message(peer_id, msg_id, 0)
+                        self.send_msg(
+                            f"[id{from_id}|Пользователь] превысил лимит сообщений на день ({daily_limit} сообщений). Текущая карма: {user.karma}",
+                            peer_id
+                        )
+                    return
+                else:
+                    # Increment message count for this day
+                    user.daily_message_count += 1
+                    self.data.save_user(user)
+
         messages = self.get_messages(event)
         selected_message = messages[0] if len(messages) == 1 else None
         selected_user = (
diff --git a/python/modules/data_service.py b/python/modules/data_service.py
index 45a0faeb..e4ccacdb 100644
--- a/python/modules/data_service.py
+++ b/python/modules/data_service.py
@@ -19,6 +19,8 @@ def __init__(self, db_name: str = "users"):
         self.base.addPattern("supporters", [])
         self.base.addPattern("opponents", [])
         self.base.addPattern("karma", 0)
+        self.base.addPattern("daily_message_count", 0)
+        self.base.addPattern("last_message_date", "")
 
     def get_or_create_user(
         self,
diff --git a/python/modules/utils.py b/python/modules/utils.py
index e30e7c2c..ac1968c4 100644
--- a/python/modules/utils.py
+++ b/python/modules/utils.py
@@ -68,3 +68,29 @@ def is_available_ghpage(
     """Returns True if github profile is available.
     """
     return requests.get(f'https://github.com/{profile}').status_code == 200
+
+
+def get_daily_message_limit(karma: int) -> int:
+    """Returns daily message limit based on karma level.
+    
+    :param karma: user's karma value
+    :return: maximum number of messages allowed per day
+    """
+    if karma > -10:
+        return -1  # No limit
+    elif karma > -20:
+        return 64
+    elif karma > -40:
+        return 32
+    elif karma > -80:
+        return 16
+    elif karma > -160:
+        return 8
+    elif karma > -320:
+        return 4
+    elif karma > -640:
+        return 2
+    elif karma > -1280:
+        return 1
+    else:
+        return 0  # Read-only mode