Abstract: Simultaneous physical retrieval methods(SPRM)is one of themost prevalent methods in satellite atmosphere remote sensing in U.S.A..It has been getting perfect with the advance of the development in theoryand practice.Our numerical comparison test is to fit it in satellite dataretrieval process and in application of meteorological operation and scienti-fic studies.It can be simply called an improved SPRM(ISPRM).The ac-curacy of ISPRM is obviously better than the SPRM's,demonstrated by alot of retrieval test results of NOAA-10 meteorological satellite soundingdata.