The process of laser angle deception jamming is analyzed from the energy level.Firstly,the power density transmission formulas of targets with different shapes are derived,their energy transmission performance is obtained via simulation analysis.The energy transmission in the process of laser angle deception jamming is analyzed and the expression of protected airspace is deduced based on energy suppression coefficient.Finally,the influencing factors of protected airspace are simulated.The results show that the protection angle is affected by the incident distance of the indicating laser,interfering laser as well as the curvature characteristics of the real target.