在多层共轭自适应光学中，采用相位屏模拟湍流的大气，用以研究湍流大气的最佳分层，确定层边界位置。文中提出了湍流大气的实验室相位屏模拟原理及相位屏个数与边界确定的仿真算法。仿真结果表明。可使用较少的相位屏模拟多层大气湍流，从而使系统结构简化。(In the multi-layer conjugate adaptive optics, the phase screen is used to simulate the turbulent atmosphere, so as to study the optimal stratification of the turbulent atmosphere and determine the boundary position of the layer. In this paper, the principle of phase screen simulation in turbulent atmosphere and the simulation algorithm of the number and boundary of phase screens are proposed. The simulation results show that. A few phase screens can be used to simulate multi-layer atmospheric turbulence, thus simplifying the system structure.)