Currently in the electronic image motion compensation method based on TDI, charge packets were transferred to conduct step during the exposure, which made the electric purse move and there is a large non-synchronized effect between the image motion. This reduced the compensation effect. In order to increase the compensation effect, effects of the charge packets discretion on the compensation effect in the image motion compensation method based on TDI was analyzed, and an improved electronic image motion compensation method was proposed, which reduced greatly the asynchronous effect between the electric purse and image motion. The modulation of the two methods were compared, which theoretically proved the enhancing role of the compensation effect. The drive timing chart of the improved type of electronic image motion compensation method was advanced. The two methods were verified by imitating different image motion compensation experiment indoor.The image modulation mean of improved electronic image motion compensation method is 47/96, more than the traditional image motion compensation method which is 1/3. The image sharpness of improved electronic image motion compensation method which is 0.550 2, more than traditional image motion compensation method which is 0.475 3. It was shown that the improved electronic image motion compensation method is better than traditional image motion compensation method.