Based on the impact of agricultural land consolidation on input in agricultural production,this paper constructs the theoretical model of impact of agricultural land consolidation on input in agricultural production and makes an empirical analysis by using data from rural household survey in areas of agricultural land consolidation.The result shows that the implementation of agricultural land consolidation project will produce certain effects on rural households’ behavior of using agricultural machinery,among which rural households’ identity degree on agricultural land consolidation and satisfaction degree on agricultural land consolidation project implementation have a significantly positive effect on rural households’ behavior of using agricultural mechinery,and farmer’ participation intention on agricultural land consolidation project implementation has a positive influence on farmers’behavior of using agricultural mechinery,but the influence is not so obvious.It is concluded that under the condition of farmers’ pursuing maximum of profit,there exists a optimal scale of farmers’ agricultural machinery input,and the implementation of agricultural land consolidation project will influence the optimal size.The rural households’ behavior of using agricultural machinery will be affected by the following factors:the market prices of agricultural products,labor factor market price,capital factor market price,rural household family characteristics,rural households’ resources endowment and implementation of agricultural land consolidation.The implementation of agricultural land consolidation project has a stimulative effect on agricultural mechanization development.