Considering the the strict electromagnetic concealment requirement for stealth fighters in combat, we proposed a virtual target tracking method based on network information.State model of virtual tracking was established based on the measurement transformation process, in which the network information precision and fighter state estimate error were taken into consideration.The state model was revised based on unbiased transformation principle.In order to improve the precision of target state estimation, Unscented Kalman Filter of Interacting Multiple Mode (IMM-UKF) algorithm based on current statistical mode was proposed.Finally, simulation was made for maneuvering target tracking under different error conditions.The result showed that “virtual tracking” method can get a stable target state estimation with fast convergence speed and high precision.