建立了一个简便、可靠的扫描质子探针元素分布图本底值剔除方法，编制了逐点本底计数值剔除计算程序。结合实际地质样品的扫描质子探针元素分布成图，对方法的有效性做了对比实验。结果表明，与传统的成图方法相比，新方法具有图像清晰、真实的优点。同时讨论了方法的误差和误差的减小途径。 A simple and reliable method to delete background value of elemental map of proton probe was established and a calculation program of counting by background counting was developed. Combined with the scanning of the proton probe elements of the actual geological samples into a map, the effectiveness of the method was compared experiment. The results show that compared with the traditional mapping method, the new method has the advantages of clear image and real. At the same time, the methods of error and error reduction are discussed.