Based on the measurement principle of CCD vertical target, a new measurement method of the attack angle is given, which can calculate the attack angle by measuring the positions of the head and the tail-end of the projectile on the target. The system can measure the attack angle of the projectile while measuring the position information. Analyze the measurement precision of the position of the system, and deduce relevant formula about attack angle measurement. Through practical tests, analyze the measurement precision of attack angle and discuss the feasibility of this method. The results turn out that the new method for measuring the attack angle is feasible and the CCD vertical target can be used to measure the attack angle in the shooting range, expanding the ability of the CCD vertical target.