As a kind of directional energy weapon system,laser weapon system has diversified operational mission profiles.Compared with traditional soft and hard damage weapons,it has the advantages of fast,flexible,accurate,multi function,and wide operational range.In recent years,the United States,Russia,Germany and other countries frequently reported the navy laser weapon test and progress.How to develop laser weapons is not only a technical problem,but also a problem of thinking.We should not only improve the ability,but also consider the practical constraints.This paper analyzes the atatus quo of foreign high energy laser,high energy laser weapon system and foreign high energy laser weapon integration demonstration in recent years,discusses its performance and characteristics,and puts forward the enlightenment of foreign high energy laser weapon development.