LD endpumped Nd∶YAG laser is researched. The experiment is guided to test of the influence of offaxis distance upon of the laser′s performance while pump light is offaxis. After analyzing the results, when the offaxis amount is increased,the slope efficiency is enlarged,however, the changing of output light from low rank modes to high ones appears in turn,the threshold of laser is raised and the beam quality is inferior. What′s more, while the LD′s pump current is enlarged,on the same offaxis pumping location, the changing of output light from high rank mode to low one appears in turn and the center of the spot closes to the axis of the very pump location.