Airy beams have important application prospects due to their non diffraction,self accelerating and self healing characteristics.In this paper,a new method for modulating Airy beam energy modulation is proposed based on the programmable characteristics of spatial light modulator.A theoretical in depth analysis of the energy modulation of the Airy beam by introducing a controllable modulation phase into the phase diagram is presented,and the relationship between modulation parameters and energy modulation range is quantified.Simulation and experimental results show that the beam energy distribution can be flexibly adjusted by changing the modulation phase,and the research in this paper helps to further promote the application of Airy beam.