Method and device for simultaneously testing multiple focal sections of camera module

The invention relates to a method and a device for simultaneously testing multiple focal sections of a camera module. The method comprises the following steps of: selecting a near focal distance, a middle focal distance and a far focal distance for testing the camera module; color blocks and light-transmitting areas are arranged on the near-focus test graphic card, the middle-focus test graphic card and the far-focus test graphic card; fixing plates are respectively arranged at the near-focus distance, the middle-focus distance and the far-focus distance, and the three test graphic cards are respectively and fixedly arranged on the corresponding fixing plates; adjusting the focal length of the camera module, shooting the near-focus test chart, the medium-focus test chart and the far-focus test chart at the same time, obtaining a test image, and detecting the resolution of the camera module according to the test image. According to the method and the device, the analytic power of the camera module in the three