This paper provides an alternative method of comprehensive research on glacier variation using multi-source andmulti-temporal data. Thiswork quantifies glacier variations of theMt. Nami ona’Nyi area by integrating glacier spatial data from ASTER and the Landsat series of satellite miagery at four different tmi es: 1976, 1990, 1999, and 2003. Comparison of the results from individual mi ages with those from the Tupu method indicates that the Tupu approach provides a better result in the research. Glacier variations were mapped and analyzed; discrepancies between miages could be detected and removed from the integrated Grid data using remap tables in Arc/Info GRID module both graphically and numerically. Our results show that glaciers in the region both retreated and advanced during the last 28 years; however, retreat dominates and\nincreaseswith tmie.The variation ofglaciers in thewesternHmi alayan region is dramatic compared with other regions in high Asia. From 1976 to 2003, glacier area decreased from 84·41km2to 77·29km2. By the sequential mi ages,it shows that glacier areas shrank by 0·17km2a-1, 0·19km2a-1,and 0·77 km2a-1,on average,during the periods1976—1990, 1990—1999,and 1999—2003, respectively,suggesting thatglacier retreat has accelerated. The retreatwasmost likely due to the negative glacialmassbalance andwas affected by rising temperature and decreasing precipitation in the region over theTibetan Plateau.