Abstract: Based on the combat procedure for the weapon channel of shipboard combat systems, this paper gives a comprehensive analysis on the performance parameters of the weapon equipment, including sensor horizon, weapon range, and time delay.A novel computation method of combat capability is proposed with the consideration of the restricted condition on ships and the performance matching requirement of the weapon channel.The main tactical and technical parameters of the weapon channel are demonstrated after analyzing the performance matching and degrading degree for the weapon equipment in the same channel in accordance to the actual shipboard condition.Then, the obtained parameters are converted into normalized indexes with different effectiveness models.Finally, the combat capability of the weapon channel is calculated through the Analytic Hierarchy Process(AHP) model.The computation results show that the performance matching of the response time, striking area, and multi-objective capability is of vital importance to the combat capability of the weapon channel, particularly during the mission of air defense and anti-missiles.