Problems of extensive and low utilization of resources exist in the traditional maize cultivation. With the rapid development of computer technology and the internet of things, this paper proposed maize precision farming parallel management technology. This technology consists of three parts: management process, model system and digital support environment construction. The objective is to realize the quantitative decision-making of maize production target-control indicators-cultivation management scheme, and realize the analysis evaluation of production environment, production technology and farmers’ operating management behavior. This technology was tested and applied preliminary in Yian County, Heilongjiang province. The application results showed that the maize precision farming parallel management technology can provide digital and scientific decision support and can achieve high production efficiency with lower fertilizer inputs and no-decreased yield.