Objective To evaluate the policy of free anti-hypertensive drugs, which has been implemented in the Waigang Community of Jiading district. Methods Questionnaire survey was conducted among people benefited from the free drug policy and group interviews were performed with relevant health workers. Results A total of 3 032 questionnaires were issued and 2 990 valid questionnaires were returned. Nine local rural doctors and 25 administrative staff were interviewed. The analysis showed that 77% of policy implementation cost was from the government funding and 97% of people benefited from the policy were satisfied. Conclusion The policy implementation cost is mainly from the government funding. Most people are satisfied with the policy which meets the commonweal requirements of primary health service. But it is necessary to consider the benefit level of health workers of primary health clinics in order to ensure the sustainable development of the policy.