分析了根据激光场强度相对分布计算激光束横模结构的方法，根据分析结果设计了利用光场分布测量激光束横模结构的实验方法。对所设计的方法进行了仿真验证，同时通过具体实验，对一款调Q激光二极管抽运固体激光器(DPL)的激光束横模结构进行了测量。实验中，在不知道谐振腔参数的情况下，根据设计的方法测量了激光束的各阶横模比例。以测量出的横模比例为基础，理论上重构出激光束，该光束和实际光束的空间传输过程基本吻合。

A new measuring method of transverse mode configuration in a laser beam is presented. It is based on the spatial relative intensity distribution of laser field. The simulation indicates that the measuring method is feasible. An experiment is also conducted to measure transverse mode configuration for a Q-switched laser diode pumped solid state laser (DPL). Without cavity parameters, the transverse mode proportion is figured out with these testing data by using this new measuring method. Based on this measured transverse mode proportion, the laser beam is also reconstructed theoretically, and it agrees well with the spatial transmission of the laser beam for measuring.