Starting from the concept of combat effectiveness evaluation of command and control equipment, this paper explores the idea and principle of constructing combat effectiveness evaluation index system, follows the principle of integrated design, according to the idea of system engineering, with the military requirements of the army as the traction, studies the typical combat style and mission profile of command and control equipment, closely adheres to the combat mission of command and control equipment, and through the analysis of command and control the decomposition and interpretation of equipment capability requirements, and the construction of the evaluation index system of combat effectiveness of command and control equipment based on combat capability have certain guiding significance for the evaluation of combat effectiveness of command and control equipment.