The present application provides an image sensor, a global shutter control method and a computer storage medium. The image sensor includes a pixel array, where the pixel array includes a plurality of columns of pixels, or the pixel array includes a plurality of groups of sub-pixel arrays, each group of sub-pixel arrays including a plurality of columns/rows of pixels; and a processor module which triggers the pixel array on the basis of an instruction. According to the control method, consistency of an average delay of the columns/rows or groups in the pixel array is achieved by dynamic averaging. In addition, the consistency cannot be affected by external conditions such as a process, a power supply or the temperature. A high instantaneous current caused by using a global shutter manner is avoided, and at the same time, there is no need for a digital processor to perform column-by-column or row-by-row correction at a back end after exposure is not required, so as to reduce hardware cost and test cost.