The present invention is a specimen testing system 100 which not only performs long-term testing by automatically performing a charging process of an electric vehicle or a part thereof, but also tests the specimen under conditions that reproduce actual road driving, and which tests a specimen W, which is an electric vehicle or a part thereof, by charging the specimen W by means of a power supply device 3. The specimen testing system 100 comprises: a dynamometer 2 that applies a load to the specimen W; an information acquisition unit 6 that acquires information on the specimen W; and a test control unit 7 that controls the test of the specimen W on the basis of the information on the specimen W, wherein the test control unit 7 stops the operation of the specimen W and charges the specimen W by means of the power supply device 3 when the information on the specimen W satisfies a first condition, and stops the charging of the specimen W by means of the power supply device 3 and restarts the operation of the specimen W when the information on the specimen W satisfies a second condition.