Background: Since 1999, the Chinese Cochrane Center has been training a large number of volunteers. In order to improve the quality of this training program, we designed this survey. Objective: To study the current status and satisfactory degree of volunteers in Chinese Cochrane Center, so as to provide suggestion for improving the scientific research capability of medical students. Methods: We carried out a survey on 407 student volunteers from EBM Center in West China Medical School, etc with self-designed questionnaires. The data was input and analyzed with Epidata3.0 and SPSS13.0 software. Results: 351(86.24%) valid questionnaires were retrieved among all the 407 questionnaires assigned. 80.6% of the respondents are contented in general with the current situation of scientific volunteers program. 34.7% of respondents thought that lack of basic knowledge and skills was the main factor that limited the progress of their research work, while for another 31.6% respondents, the main limited factor is that they don t have enough extracurricular time. The most urging training items of the participants are: background knowledge (74.4%) clinical skills (69.8%) documentary management (such as statistics literature retrieval, 64.1%) 21.1% of research activities are not operated in a standardized organizational mode. 96.2% of the respondents emphasized on the necessity of exhibiting their works and achievements in public. Tutor s instructions (P=0.027), training on basic knowledge and skills (P=0.011) organizational mode (P=0.000) are the main factors which affect the satisfactory degree on scientific volunteer programs. Conclusion: The satisfactory degree of students who participated in scientific volunteer programs is generally satisfying. Increase of participation rate in scientific research program can be attributed to factors such as establishment of a scientific volunteer recruitment system, improvement of students research capability, standard organizational modes, standard managing and operating mechanism, embed training lessons into courses and exhibition of research achievements, which plays a positive role in improving the scientific research capability of medical students.