Target tracking is not only an important operation mode of fire-control radar, but also the primary task of the fire-control system. Extensible and repeatable signal-level target tracking simulation system of fire-control radar based on HLA is developed in this paper. Then according to the features of closed loop, continuous tracking, automatic measuring, starting from the signal-level simulation, combining antenna module, receiver and signal processing module, control system module in tracking system of fire-control radar, dynamic target tracking simulation is completed. The simulation result indicates that the dynamical process of target tracking is carried out through the simulation system distinctly and effectively, which is of some reference value for the research on training simulation system design of fire-control radar and electronic warfare system evaluation.