Objective　To discuss the accuracy and objectivity of student standardized patients （SSP） in objective structured clinical examination （OSCE）. Methods　On March 30 and 31， 2013， 168 seven-year program medical students of class 2006 and 2007 took part in OSCE. Differences in as-sessment results between SPP and those given by professional doctors at 3 SP sites（angina pectoris SSP station， acute cholecystitis SSP station， depression SSP station） were analyzed. Each site had 4 items for assessment， with a total score of 100. Scores were given in strict accordance with a set of unified scoring rules. Counting data were presented as x±s. Data were verified using t test. P<0.05 was considered statis-tically considerable. Results　At angina pectoris station， respective scores of SSP and professional physi-cians were 85.2±7.1 and 85.5±6.6， P=0.688. At acute cholecystitis station， respective score of SSP and professional physicians were 89.1±5.2 and 88.2±6.2， P=0.150. At depression station， respec-tive score of SSP and professional physicians were 79.8±7.5 and 78.2±7.0， P=0.078. Conclusion　There is no statistical difference between scores given by SSP and those given by the physicians in OSCE. This proves that SSP who received standardized training delivers fair and accurate results in OSCE， and therefore is recommended for future application.