Laser weapons are essential means for anti-missile and anti-drone operations in modern warfare. To fairly assess the system contribution rates of various equipment in a laser weapon coalition, a fuzzy coefficient matrix is established based on damage impact factors, with full consideration of the damage effects of laser weapons during target engagement. Furthermore, by treating laser weapons as participants in cooperative games, the fuzzy Shapley value model is employed, and corresponding calculation formulas are derived to quantify the contribution share of each participant in combat missions. Finally, the system contribution rates of various laser weapons in typical laser weapon combat scenarios are calculated and obtained, which provides a reference basis for laser weapon employment strategies.