Up　to　present,　no　study　has　been　published　with　respect　to　the　cross-comparison　between　ASTER　and　Landsat-7　ETM+　imagery.　Therefore,　the　present　paper　has　implemented　the　complementary　study　on　the　images　between　these　two　sensors.　The　study　firstly　conducted　the　sensors　characteristics　comparison,　including　orbit　characteristic,　sensor　scanning　mode　and　imagery　spectral　characteristic.　Further　comparison　was　implemented　to　get　the　relation　equations　between　corresponding　V-NIR　and　SWIR　bands　of　these　two　sensors　based　on　the　apparent　reflectance　of　the　three　pairs　of　synchronization　images　and　large　common　ground　regions.　The　validation　has　been　done　to　verify　the　effectiveness　of　the　proposed　corresponding　bands　relation　equations　and　matching　coefficients.　The　result　shows　that　the　provided　relation　equations　have　high　accuracy.