By comparing between image SIR-A and image MSS in different area such as Luobubo,Huabei plain, Luliang mountain, Badanjilin sand desert and Xinjiangkeping area, this paper sums up the imagery feature of wind abrasion landform, plain river, villages and small towns, loess plateau, sand desert and rock on that two images, and analyses preliminarly that two images imaging mechanism, and points out the difference between two images interpret effect and pre-sents reference to anyone when he selects information source.