The invention provides a mobile phone night-shot method based on imu information. A gyroscope is installed on the mobile phone; every time the mobile phone takes a photo, the gyroscope outputs angle information of current mobile phone motion, namely imu information. In case of night shot, the mobile phone continuously takes five images {Ai, i=1,...,5} for the same target and the gyroscope outputs the imu information of each image at the same time. According to the night-shot method provided by the invention, imu information is respectively used to correct each image, and all corrected images are fused to obtain a high-quality night-shot image. A device needed for the method provided by the invention is simple in requirement, is relatively low in cost, is not great in algorithm calculation complexity, is capable of better realizing the night-shot function of the mobile phone, and has a high practical value.