The present technology discloses a testing apparatus and a testing method for liquid crystal display (LCD). The apparatus comprises a testing chamber, at least one support device in the testing chamber and an adjusting device. The support device comprises a support stage located at the bottom of the testing chamber and a support rail located on a side wall of the testing chamber. The LCD is supported by the support stage and the support rail. The adjusting device is used to control the support rail to adjust angle of the LCD relative to the support stage.