[Objective] The analyses of land use change and ecological risk assessment in Hangzhou City, Zhejiang Province will provide theoretical basis for protecting ecological security, developing land resources reasonably and making scientific and effective planning.[Methods] Based on the change of land use pattern in Hangzhou City, the ecological risk index was constructed to analyze the spatial and temporal change of ecological risk and the response characteristics of ecological risk to land use.[Results] ① The land use change was mainly manifested as:the reduction of cultivated land and the increase of construction land; the transfer of cultivated land and forest land to construction land, the transfer of waters and grassland to cultivated land and forest land; the intensity of land use was slowed. ② The ecological risk increaseed in Hangzhou City, and the ecological risk value was positively correlated with land use. The moderate ecological risk area occupied the dominant position, the extremely high ecological risk areas were mainly distributed in the city area, Hangzhou Bay, southwest of the center of Chun'an County, the ecological risk area as a center to periphery decline. ③ The ecological risk grade was mainly low-high grade transfer, the ecological risk grade rises, and the annual average conversion rate was decreasing. ④ The response of ecological risk to land use change was more flexible in spatiotemporal space, and the response coefficient of urban areas, Jiande City and Tonglu County was declining. The risk sources and risk factors tended to diversify; the response coefficients of other units increased, and land use had a positive response to regional ecological risks.[Conclusion] The spatial and temporal change of land use pattern in Hangzhou City is obvious, and the rapid change of land use aggravates the ecological risk of Hangzhou City.