Objective To investigate the defects analysis and targeted intervention on the diseases diagnosis in the home pages of medical records. Methods To conduct an inspection analysis on the four thousand and two hundred medical records according to the related requirements of “Notification on Standard writing in Home Pages of Hospitalization Medical Records announced by the Ministry of Health” by professional medical records staff.They found out and classified the defects on the diseases diagnosis in the home pages of medical records,at the same time,questionnaire survey were carried on to investigate the related causes,and the corresponding database establish ed.Excel statistical tools were applied for statistical analysis. Results There were defects on the diseases diagnosis in a total of seven hundred and forty-eight cases,the incidence of which was 17.8%,including 8.3% of mistakes of main diagnosis,7.6% of lack of standardization in diagnosis names,1.8% of missed diagnosis respectively.Defects on the diseases diagnosis occurred in a higher rate in the clinical departments,such as department of endocrine with 38.0%,department of orthopedics with 32.8%,and department of oncology with 31.6%.Graduate students most prone to make mistakes with defects on the diseases diagnosis,the incidence of which was 48.0%. Conclusion Targeted interventions to clinician groups and clinical departments with high incidence of defects on the diseases diagnosis,is expected to reduce the incidence of which in the home pages of medical records.