Objective To understand the cognition degree of medical insurance policy among medical insurance related staff in Hebei Province,China,and find out the factors affecting the cognition degree,so as to provide scientific basis for promoting the implementation and development of medical insurance policy in China.Methods A total of 12 541 in-service staff engaged in medical insurance related work in provincial and municipal hospitals,medical security department and municipal medical insurance bureau in Shijiazhuang City of Hebei Province from July to August 2021 were randomly selected as the research objects to understand their cognition degree of medical insurance knowledge,and analyze and explore the factors affecting the cognition degree of medical insurance policy.Results A total of 9 417 qualified questionnaires were collected,with a passing rate of 75.1%.The results of single factor analysis showed that there were no statistically significant differences in the influence of gender,age and length of service on the degree of medical insurance cognition (P＞0.05).There were statistically significant differences in the influence of different work units,educational backgrounds,majors,professional and technical positions,and different training frequencies of medical insurance related staff on the degree of medical insurance cognition (P＜0.05).The results of multivariate analysis suggested that the working unit was a first-level hospital(β=0.329,OR=1.390,95%CI=1.239-1.559),a second-level hospital(β=0.147,OR=1.158,95%CI=1.004-1.336),and the major was clinical (β=0.243,OR=1.275,95%CI=1.122-1.449),pharmacy(β=0.228,OR=1.256,95%CI=1.071-1.474)and nursing (β=0.262,OR=1.299,95%CI=1.115-1.514),the training frequency was once a week(β=0.503,OR=1.653,95%CI=1.319-2.071),and once a month (β=0.257,OR=1.293,95%CI=1.116-1.499) were the positive factors influencing the cognition level of medical insurance.Conclusion The working unit,the major and the frequency of training are the factors that affect the cognition degree of medical insurance related staff.The relevant units should increase the frequency of training for relevant personnel,so as to improve the awareness of medical insurance related staff and promote the implementation and development of medical insurance policies.