Abstract The realization of true color image processing of remote sensing on microcomputers and the application of SGW-93 enviromental remote sensing image processing information system are reported. Because SGW-93 system is based on the microcomputer and true color image processing adapter, the popularity, practicality, expansibility, and ratio between price and property are good. Otherwiss, the software system provides not only the geometric distortion correction of true color remote sensing image, grid processing, image mosaic, roaming check of mosaic image, histogram analysis, density slicing, contrast image enhancement, edge enhancement, but also color dynamic combinatorial page analysis,statistics of polygonal area, Chinese character edition and overlay on the image,transformation of various image file forms, color image printout. It has been solved the problem of true color remote sensing image processing and effective extraction of enviromental information on microcomputers.