Based on the survey data of 2 704 households in nine provinces of China,we use logit regression model to analyze the impact of the stability of farmland property rights on farmers’ purchase of agricultural machinery services. The results show that the instability of the right in land contract significantly inhibits the farmers from purchasing agricultural machinery and promotes the purchase of agricultural machinery services. Moreover,the instability of the right in land contract has more influence on the purchase of agricultural machinery services than the land resource endowment. In addition,to meet the demand of capital technology in the production process,farmers would rather purchase agricultural machinery services than purchase agricultural machinery,because the right of management has not been effectively protected by law. The policy implications are as follows:in order to encourage farmers’ investment and develop capital,the new driving force of agricultural transformation and upgrading,we need to further stabilize the right in farmland contract and attach importance to the protection of the management right of farmland.