Objective To analyze the performance of epidemic prevention in Sichuan Province after Wenchuan earthquake, so as to provide references for future epidemic prevention when such emergencies occur. Methods Data about the relief work after the Wenchuan earthquake were collected from the archives of medical care assurance group of the anti-seismic and disaster relief headquarter. And then the data were classified and analyzed. Results After the Wenchuan earthquake, the strategies of epidemic prevention included emphasis on both epidemic prevention and medical relief, early implementation of hygienic measures, wide coverage of different measures for disease prevention with focuses on the most important diseases, as well as standardization and long lasting of epidemic prevention efforts. Owing to these strategies, the epidemic prevention in Sichuan Province was conducted vigorously, orderly and effectively. Conclusion The post-quake epidemic prevention strategies in Sichuan Province are accurate and effective, which could be recommended when such emergencies occur in the future.