This paper studies the issue of laser disposal of ammunition.It's necessary to solve the problems of the traditional undirected energy systems in dealing with Unexploded Ordnance (UXO),such as long preparation time,too many operation staff members,too many operational projects,too many service links,low safety coefficient and the difficulty to dispose scattered ammunition.First of all,the advantages of the directed energy system in removing UXO are expounded.For example,it is safe,fast,costs low,operates covertly,with controllable effects,compatibility,maneuverability and no noise.Secondly,the recent development of high-energy laser weapons at home and abroad are reviewed,especially in using the laser to destroy UXO,Improvised Explosive Device(IED),and mines.Thirdly,the technical requirements of the laser UXO disposal system are put forward.For example,it needs to be “viewable,target-reachable and controllable”.Further more,the key technologies of laser disposal system are pointed out,including the multi-sensor detection technology,the reliable,compact and high-energy laser technology,and the mechanism of lasers and dangerous explosives.Finally,the existing problems and solutions are analyzed.