Laser weapon is considered to be the most potential new concept weapon in the defense of naval warship and ranked as offensive and defensive shipborne weapon in the future. To damage targets accurately and steadily,fire control system of shipborne high-energy laser weapon is crucial. Through comparing fire control system of high-energy laser weapon and traditional shipborne gun,the composition,function and the key technologies of fire control system of shipborne high-energy laser weapon were summarized. At last,research area of fire control system was pointed out.