Abstract: 【Objective/Meaning】In order to improve the development level of modern agriculture in Sichuan Province,the main factors that influenced the agricultural output value of Sichuan Province were discussed,in order to provide countermeasures and suggestions for the development of modern agriculture.【Methods/Procedures】Based on the statistical yearbook of Sichuan Province in 2016,the relevant data of agricultural input of 21 cities(districts) in Sichuan Province were collected and sorted out,and then the six agricultural input indicators were selected to study and analyze the relationship between agricultural output value and corresponding agricultural index input in Sichuan Province by using the method of principal component analysis and the model of linear regression.【Results/Conclusions】It was found that the main factors influencing the agricultural output value in Sichuan were cultivated land area,irrigation area and total power of agricultural machinery,so the relevant adjustment suggestions were put forward including ensuring the quantity and quality of cultivated land;expanding the effective irrigation area;improving the efficiency of fertilizer use;ensuring the supply of electricity to rural areas;increasing the total power level of agricultural machinery and the number of rural employees.