Diamond grinding wheels play a pivotal role in the field of grinding. For the stop loss of failed diamond grinding wheels, choosing a reasonable dressing method for them has become a major problem. Laser dressing technology integrates optical, electrical, thermal, mechanical and other methods, which can effectively realize the dressing of diamond grinding wheels, and has attracted great attention from many scholars from home and abroad. The basic principles of laser dressing diamond grinding wheels are described, with the research status of laser dressing technology analyzed, and the future development of laser dressing diamond grinding wheels prospected.