diff --git a/app/main/check_packs/pack_config.py b/app/main/check_packs/pack_config.py
index 91e08134..db2e4ef2 100644
--- a/app/main/check_packs/pack_config.py
+++ b/app/main/check_packs/pack_config.py
@@ -22,6 +22,7 @@
     ['pres_image_capture'],
     ['task_tracker'],
     ['overview_in_tasks'],
+    ['pres_abbreviations_check'],
 ]
 BASE_REPORT_CRITERION = [
     ["simple_check"],
@@ -50,6 +51,7 @@
     ["empty_task_page_check"],
     ["water_in_the_text_check"],
     ["report_task_tracker"],
+    ["report_abbreviations_check"],
 ]
 
 DEFAULT_TYPE = 'pres'
diff --git a/app/main/checks/check_abbreviations.py b/app/main/checks/check_abbreviations.py
new file mode 100644
index 00000000..0fd0ff4d
--- /dev/null
+++ b/app/main/checks/check_abbreviations.py
@@ -0,0 +1,105 @@
+import re
+from pymorphy3 import MorphAnalyzer
+morph = MorphAnalyzer()
+
+
+def get_unexplained_abbrev(text, title_page):
+    abbreviations = find_abbreviations(text, title_page)
+    
+    if not abbreviations:
+        return False, []
+    
+    unexplained_abbr = []
+    for abbr in abbreviations:
+        if not is_abbreviation_explained(abbr, text):
+            unexplained_abbr.append(abbr)
+    
+    return  True, unexplained_abbr
+            
+def find_abbreviations(text: str, title_page: str):
+    pattern = r'\b[А-ЯA-Z]{2,5}\b'
+    abbreviations = re.findall(pattern, text)
+    
+    common_abbr = {
+        'СССР', 'РФ', 'США', 'ВКР', 'ИТ', 'ПО', 'ООО', 'ЗАО', 'ОАО', 'HTML', 'CSS', 
+        'JS', 'ЛЭТИ', 'МОЕВМ', 'ЭВМ', 'ГОСТ', 'DVD'
+         
+          'SSD', 'PC', 'HDD',
+        'AX', 'BX', 'CX', 'DX', 'SI', 'DI', 'BP', 'SP',
+        'AH', 'AL', 'BH', 'BL', 'CH', 'CL', 'DH', 'DL', 
+        'CS', 'DS', 'ES', 'SS', 'FS', 'GS',
+        'IP', 'EIP', 'RIP', 'URL',
+        'CF', 'PF', 'AF', 'ZF', 'SF', 'TF', 'IF', 'DF', 'OF',
+        'EAX', 'EBX', 'ECX', 'EDX', 'ESI', 'EDI', 'EBP', 'ESP',
+        'RAX', 'RBX', 'RCX', 'RDX', 'RSI', 'RDI', 'RBP', 'RSP',
+        'DOS', 'OS', 'BIOS', 'UEFI', 'MBR', 'GPT',
+        'ASCII', 'UTF', 'UNICODE', 'ANSI',
+        'ЭВМ', 'МОЭВМ',
+        'CPU', 'GPU', 'APU', 'RAM', 'ROM', 'PROM', 'EPROM', 'EEPROM',
+        'USB', 'SATA', 'PCI', 'PCIe', 'AGP', 'ISA', 'VGA', 'HDMI', 'DP',
+        'LAN', 'WAN', 'WLAN', 'VPN', 'ISP', 'DNS', 'DHCP', 'TCP', 'UDP', 'IP',
+        'HTTP', 'HTTPS', 'FTP', 'SSH', 'SSL', 'TLS',
+        'API', 'GUI', 'CLI', 'IDE', 'SDK', 'SQL', 'NoSQL', 'XML', 'JSON', 'YAML',
+        'MAC', 'IBM', 'ГОСТ', 'ООП', 'ЛР', 'КР', 'ОТЧЕТ'
+    }
+    filtered_abbr = {abbr for abbr in abbreviations if abbr not in common_abbr \
+                     and abbr not in title_page and morph.parse(abbr.lower())[0].score != 0}
+    
+    return list(filtered_abbr)
+
+def is_abbreviation_explained(abbr: str, text: str) -> bool:
+    patterns = [
+        rf'{abbr}\s*\(([^)]+)\)',         # АААА (расшифровка)
+        rf'\(([^)]+)\)\s*{abbr}',         # (расшифровка) АААА
+        rf'{abbr}\s*[—\-]\s*([^.,;!?]+)', # АААА — расшифровка
+        rf'{abbr}\s*-\s*([^.,;!?]+)',     # АААА - расшифровка
+        rf'([^.,;!?]+)\s*[—\-]\s*{abbr}', # расшифровка — АААА  
+        rf'([^.,;!?]+)\s*-\s*{abbr}'      # расшифровка - АААА 
+    ]
+
+    
+    for pattern in patterns:
+        match =  re.search(pattern, text, re.IGNORECASE)
+        if match and correctly_explained(abbr, match.group(1)):
+            return True
+    
+    return False
+
+def correctly_explained(abbr, explan):
+    words = explan.split()
+    
+    first_letters = ""
+    for word in words:
+        if word:
+            first_letters += word[0].upper()
+
+    return first_letters == abbr.upper()
+
+def main_check(text: str, title_page: str):
+    try:
+        continue_check = True
+        res_str = ""
+        if not text:
+            continue_check, res_str = False, "Не удалось получить текст"
+        
+        abbr_is_finding, unexplained_abbr = get_unexplained_abbrev(text=text, title_page=title_page)
+        
+        if not abbr_is_finding:
+            continue_check, res_str = False, "Аббревиатуры не найдены в представленном документе"
+        
+        if not unexplained_abbr:
+            continue_check, res_str = False, "Все аббревиатуры правильно расшифрованы"
+
+        return continue_check, res_str, unexplained_abbr
+    
+    except Exception as e:
+        return False, f"Ошибка при проверке аббревиатур: {str(e)}", {}
+    
+def forming_response(unexplained_abbr_with_page, format_page_link):
+    result_str = "Найдены нерасшифрованные аббревиатуры при первом использовании:<br>"      
+    page_links = format_page_link(list(unexplained_abbr_with_page.values()))
+    for index_links, abbr in enumerate(unexplained_abbr_with_page):
+        result_str += f"- {abbr} на {page_links[index_links]} странице/слайде<br>"
+    result_str += "Каждая аббревиатура должна быть расшифрована при первом использовании в тексте.<br>"
+    result_str += "Расшифровка должны быть по первыми буквам, например, МВД - Министерство внутренних дел.<br>"
+    return result_str
diff --git a/app/main/checks/presentation_checks/__init__.py b/app/main/checks/presentation_checks/__init__.py
index 8a0a64fb..288546f1 100644
--- a/app/main/checks/presentation_checks/__init__.py
+++ b/app/main/checks/presentation_checks/__init__.py
@@ -17,4 +17,5 @@
 from .name_of_image_check import PresImageCaptureCheck
 from .task_tracker import TaskTracker
 from .overview_in_tasks import OverviewInTasks
-from .decimal_places import PresDecimalPlacesCheck
\ No newline at end of file
+from .abbreviations_presentation import PresAbbreviationsCheck
+from .decimal_places import PresDecimalPlacesCheck
diff --git a/app/main/checks/presentation_checks/abbreviations_presentation.py b/app/main/checks/presentation_checks/abbreviations_presentation.py
new file mode 100644
index 00000000..1dafefdd
--- /dev/null
+++ b/app/main/checks/presentation_checks/abbreviations_presentation.py
@@ -0,0 +1,39 @@
+import re
+from ..base_check import BasePresCriterion, answer
+from ..check_abbreviations import main_check, forming_response
+
+
+class PresAbbreviationsCheck(BasePresCriterion):
+    label = "Проверка расшифровки аббревиатур в презентации"
+    description = "Все аббревиатуры должны быть расшифрованы при первом использовании"
+    id = 'pres_abbreviations_check'
+
+    def __init__(self, file_info):
+        super().__init__(file_info)
+
+    def check(self):
+        try:
+            slides_text = self.file.get_text_from_slides()
+            title_page = slides_text[0]
+            full_text = " ".join(slides_text)
+
+            continue_check, res_str, unexplained_abbr = main_check(text=full_text, title_page=title_page)
+            if not continue_check:
+                return answer(True, res_str)
+            
+            
+            unexplained_abbr_with_slides = {}
+
+            for slide_num, slide_text in enumerate(slides_text, 1):
+                for abbr in unexplained_abbr:
+                    if abbr in slide_text and abbr not in unexplained_abbr_with_slides:
+                        unexplained_abbr_with_slides[abbr] = slide_num
+                        
+            if not unexplained_abbr_with_slides:
+                return answer(True, "Все аббревиатуры правильно расшифрованы")
+            
+            result_str = forming_response(unexplained_abbr_with_slides, lambda pages: self.format_page_link(pages))
+            return answer(False, result_str)
+                
+        except Exception as e:
+            return answer(False, f"Ошибка при проверке аббревиатур: {str(e)}")
diff --git a/app/main/checks/report_checks/__init__.py b/app/main/checks/report_checks/__init__.py
index 7b1b974b..96b3fab0 100644
--- a/app/main/checks/report_checks/__init__.py
+++ b/app/main/checks/report_checks/__init__.py
@@ -13,12 +13,10 @@
 from .page_counter import ReportPageCounter
 from .right_words_check import ReportRightWordsCheck
 from .section_component import ReportSectionComponent
-from .sections_check import LRReportSectionCheck
 from .short_sections_check import ReportShortSectionsCheck
 from .simple_check import ReportSimpleCheck
 from .style_check_settings import StyleCheckSettings
 from .find_theme_in_report import FindThemeInReport
-from .headers_at_page_top_check import ReportHeadersAtPageTopCheck
 from .sections_check import LRReportSectionCheck
 from .style_check import ReportStyleCheck
 from .spelling_check import SpellingCheck
@@ -33,5 +31,5 @@
 from .sw_keywords_check import SWKeywordsCheck
 from .task_tracker import ReportTaskTracker
 from .paragraphs_count_check import ReportParagraphsCountCheck
-from .template_name import ReportTemplateNameCheck
-from .decimal_places import ReportDecimalPlacesCheck
\ No newline at end of file
+from .abbreviations_check import ReportAbbreviationsCheck
+from .decimal_places import ReportDecimalPlacesCheck
diff --git a/app/main/checks/report_checks/abbreviations_check.py b/app/main/checks/report_checks/abbreviations_check.py
new file mode 100644
index 00000000..906378e0
--- /dev/null
+++ b/app/main/checks/report_checks/abbreviations_check.py
@@ -0,0 +1,56 @@
+from ..base_check import BaseReportCriterion, answer
+from ..check_abbreviations import main_check, forming_response
+
+
+class ReportAbbreviationsCheck(BaseReportCriterion):
+    label = "Проверка расшифровки аббревиатур"
+    description = "Все аббревиатуры должны быть расшифрованы при первом использовании"
+    id = 'report_abbreviations_check'
+
+    def __init__(self, file_info):
+        super().__init__(file_info)
+
+
+    def check(self):
+        try:
+            text = self._get_document_text()
+            title_page = self.file.pdf_file.text_on_page[1]
+
+            continue_check, res_str, unexplained_abbr = main_check(text=text, title_page=title_page)
+            if not continue_check:
+                return answer(True, res_str)
+            
+            unexplained_abbr_with_page = {}
+            
+            for page_num in range(1, self.file.page_counter() + 1):
+                text_on_page = self.file.pdf_file.text_on_page[page_num]
+
+                for abbr in unexplained_abbr:
+                    if abbr in text_on_page and abbr not in unexplained_abbr_with_page:
+                        unexplained_abbr_with_page[abbr] = page_num
+                
+            if not unexplained_abbr_with_page:
+                return answer(True, "Все аббревиатуры правильно расшифрованы")
+            result_str = forming_response(unexplained_abbr_with_page, lambda pages: self.format_page_link(pages))
+            return answer(False, result_str)
+
+        except Exception as e:
+            return answer(False, f"Ошибка при проверке аббревиатур: {str(e)}")
+                
+
+
+    def _get_document_text(self):
+
+        if hasattr(self.file, 'pdf_file'):
+            page_texts = self.file.pdf_file.get_text_on_page()
+            return " ".join(page_texts.values())
+        elif hasattr(self.file, 'paragraphs'):
+            text_parts = []
+            for paragraph in self.file.paragraphs:
+                text = paragraph.to_string()
+                if '\n' in text:
+                    text = text.split('\n')[1]
+                text_parts.append(text)
+            return "\n".join(text_parts)
+        return None
+    
\ No newline at end of file