Based on the incomplete cross-regional agricultural machinery market,the quasi-natural experiment method is used to divide the agricultural machinery service market into two market situations:cross-regional operation and noncross-regional operation.Using 1440 samples of agricultural machinery harvesting service of farmers in Hubei Province,this paper studied the influence of cross-regional operation of agricultural machinery on service acquisition of farmers by PSM Model.Results show:The average price of agricultural machinery harvesting service for farmers in the cross-regional service market is 11.026~12.931 yuan/mu lower than that in the non-crossregional service market.There is heterogeneity in the impact of agricultural machinery service acquisition on farmers of different scale in cross-regional operation,which can be shown in the fact that the large-scale farmers have more advantages in price and feasibility of service acquisition,and cross-regional operation does not significantly reduce small-scale farmers’ service price.Comparatively,the short-distance cross-regional operation can significantly reduce the price and difficulty of service acquisition.Therefore,it is suggested to coordinate farmers’ demand for machinery harvesting service,expand cross-regional service scale,build a market information platform for the transfer of supply and demand information on machinery service,and encourage cross-regional operation service within appropriate radius.