Abstract: Currently, after years of development of oilfields in China, the liquid production of many oil wells has decreased year by year, and the phenomenon of insufficient hydrocarbon supply is becoming more and more common in medium and low production wells. The unbalanced supply and production of these oil wells is the main reason for the high energy consumption and low efficiency of pumping wells. To solve the key problem of supply-production balance, this paper develops a new intelligent control system of pumping unit based on electrical control devices and digital technology, which can regulate the operation parameters of the pumping unit according to the data characteristics of the collected pumping mechanical and electrical parameters without introducing high-cost sensors and complex on-site transformation, maintain the oil well production under reasonable flow pressure in real time, which in turn, maximize production capacity of the oil well and improve the efficiency of the pumping production system. In the field test of 11 wells, after the application of the intelligent operation control system of pumping units, the average liquid level of the oil wells increased by 36 m, the average daily liquid output increased by 2.22 t, and the system efficiency increased by 2%. The system improves the intelligence level of the pumping production system, saves energy consumption, and reduces the maintenance workload, which is of great significance for improving the level of information management and reducing the operating cost of the pumping production system.