The invention relates to a method for producing seamless stainless steel pipes for high-pressure boilers. The method comprises the following steps: adjusting weight ratio of carbon element in a raw material of TP347H type seamless stainless pierced billet to be 0.06 to 0.10 percent; and then carrying out truncating, acid washing, polishing, solid solution heat treatment, straightening, cold rolling, solid solution heat treatment, cold drawing, high-temperature creep stress conditioning, straightening and cutting pipes, and acid washing in turn on the pierced billet raw material, wherein the high-temperature creep stress conditioning is subjected to four groups of process temperature successively. The method improves level of grain size greatly based on the TP347H type seamless stainless steel, and the level of the grain size reaches 7 to 10; and at the same time, through adjusting the carbon element, the method improves corrosion resistance and steam oxidization resistance during use of the steel pipes at the environment of high temperature and high pressure, so that the seamless stainless steel pipes can be applied to supercritical boilers with large capacity and high parameters.