Abstract:  There were errors with the land statistics in Qaug Huadaau and Qaug lheuxaau Tougkao. Among the official land statistics before the Qianlong period，only the statistics of 1685 were relatively accurate. The “total land data”of that year included the data on civil lands and military lands that had been transformed from the governance of guards and battalions to the governance of counties. The“military land data" of that year included the military lands which were still under the governance of guards and battalions. The contents of the statistics for 1724、1753、1766 were different from province to province. In some provinces both“total land data" and“military land data" did not include the military land transformed to the counties. In some other provinces，both data were included as military land. After emending the official land data by the statistics from provincial gazetteers，we can find a smoother land growth curve than the estimates of earlier scholars.