An image compression method includes: starting a social media application to enter an interface for inputting a to-be-posted content; when an operation for adding an image is detected, displaying a first image in the interface; and when an operation for posting the first image is detected, in response to the operation, performing differential compression on the first image to obtain a second image, and sending the second image to a server corresponding to the social application. The method enables an electronic device to perform differential compression on the image and post the compressed image on a social media platform.