Abstract: Objective Methods Todiscussthediagnosisofoccupationalchronicbenzenepoisoningingasstationworkers. A totalof15gasstationoperatorswhoappliedforthediagnosisofoccupationalchronicbenzenepoisoningfrom 2019to2021and completed the diagnostic procedure were selected as the research subjects using the method of retrospective analysis. The Results diagnostic data of occupational disease were collected and analyzed. The 15 patients came from 14 different gas ， stations and they submitted application for occupational disease diagnosis to the occupational disease diagnosis institution becauseoflowwhitebloodcellcountand/orneutrophilcountdetectedduringoccupationalhealthexamination.Thewhiteblood，cellcountneutrophiland/orplateletcountof13patientsweremostlydeviatedduringthemedicalobservationperiod.The，samplingofoilproductsshowedbenzeneintheoilbutbenzenewasnotdetectedintheair.NooccupationalchronicbenzeneConclusionpoisoningwasfinallydiagnosedduetothelackofoccupationalexposuretobenzene.Thehistoryofoccupational benzene exposure is one of the important factors for determining the etiology of occupational chronic benzene poisoning.， Occupationalchronic benzene poisoning can be diagnosed based on the comprehensive analysis ofclinicalmanifestations and - excludingothernon occupationalfactorscausingabnormalbloodtests.