Objective: To systematically summarize the reform measures for outpatient coordinated guarantee mechanism of employee medical insurance in provinces of China, as a reference for the promotion and improvement of the reform. Methods: The content analysis method was adopted to collect policy documents related to the reform from provincial government websites. Based on four aspects, including individual account distribution and usage scope, general outpatient treatment, chronic and special illness treatment for outpatient, and retail pharmacy treatment, the main practices and differences in each province were summarized. Results: In terms of personal account contribution, some provinces adopted a fixed amount while others utilized a proportion-based approach, with a few provinces expanding the scope of personal account payment to include commercial medical insurance premiums. The general outpatient treatment deductible ranged from 0 to 1 800 yuan, with a reimbursement rate between 50% and 90%, and a cap ranging from 1 200 yuan to no cap, with preferential policies being extended to retirees and grassroots workers. 4 provinces are gradually exploring a unified list of outpatient chronic and special illnesses and their corresponding medical treatment standards, and 8 provinces have defined retail pharmacy treatment policies. Conclusion: There are significant differences in the general outpatient treatment of employee medical insurance policy among provinces of China, and a few provinces have explored the unification of outpatient chronic disease treatment policies and developed retail pharmacy treatment policies. The reform should emphasize the connection between general outpatient and inpatient coverage, strengthen policy coordination and cooperation with the family doctor contract services and the medical community.