[Objective] The monitoring and evaluation of the changes for cultivated land quality at Xiushan karst mountain county was carried out to provide a scientific basis for the protection of cultivated land. [Methods] Monitoring and evaluation were carried out by plot sampling method. [Results] Through the analyses of natural conditions and social economic status of Xiushan County, and the analyses of regional compartment and superimposition, the cultivated land was classified as 10 types according to the occurrences of drought and subsidence. Upon which, 40 transitional regions of the cultivated land in Xiushan County was marked up. The monitoring indexes of each gradation type area were obtained by plot sampling method. According to the published“agricultural land quality classification procedures”, the calculated values of the monitored factors could designated the indices of the arable land use in 2014. [Conclusion] The average cultivated land of different gradational areas in Xiushan County was stable in 2014, including the quality difference among different gradational cultivated land, the average grade along transitional regions and the acreage changing into other gradational types.