Abstract: The present disclosure relates to a camera module testing method, the camera module testing method includes following steps: providing a testing chart, wherein the testing chart includes a scaleboard and at least four marks distributed on the scaleboard, each quadrant of a rectangular coordinate system with an origin thereof meeting a geometric center of the testing chart is distributed with at least one of the marks; providing a camera module for capturing an image of the testing chart, wherein the camera module includes a voice coil motor; providing a processor, the processor can generate a movement distance and a horizontal offset of the voice coil motor according to the image captured by the camera module and the location of the at least four marks. The disclosure also relates to a testing chart and a camera module testing system using the testing chart.