Abstract: In order to enable the electro-optical tracking systems to track the “S maneuver” targets, a model with the extended Kalman filtering algorithm against the maneuvering target turn is proposed based on the motion characteristics of “S maneuver” targets to overcome the shortcomings of the previous Singer model. The precision tracking for the “S maneuver” targets in 2-D plane was realized by the Monte Carlo simulation, and the root mean square error of position is much smaller than the Singer model. It proves that this method is capable of tracking the typical “S maneuver” targets.