Diabetic retinopathy(DR)is the first blinding disease among the working age population. The main causes of visual impairment and blindness are proliferative diabetic retinopathy and diabetic macular edema. Retinal laser photocoagulation is the main method in the treatment of DR currently, but the traditional laser has many side effects and complications. In order to reduce these side effects and be more efficacy, many new retinal laser treatment systems have emerged. This article reviews the recent progress in the laser treatment of DR.