Abstract: In order to study motivation and influence degree of regional cultivated land quality change，cultivated land was divided into four types of change areas according to reasons of quality change: new，reduced，project construction and gradual change.Results showed that，quality of cultivated land increased slightly in Zhengzhou during study period，and productivity decreased due to decrease of cultivated land.Impact of type of cultivated land change on quality of regional cultivated land was in the order of gradual change>decrease> increase>land construction project.Zhengzhou City was able to maintain quality of regional cultivated land through new cultivated land and project construction，but failed to maintain production capacity.By analyzing mechanism of regional cultivated land quality changes in different types of areas，relationship between quality changes in different types of areas and overall quality changes could be accurately analyzed.It could provide policy suggestions for managers to develop cultivated land quality and productivity protection，which has great application value.