In the context of the era of informatization and intelligence, smart agriculture has become an important means to promote agricultural modernization. In this case, the smart agriculture monitoring system based on wireless sensor network came into being, which integrates the Internet of Things, cloud computing, big data and other advanced technologies to provide a new solution for agricultural production. This paper introduces the research background of the smart agriculture monitoring system, elaborates the overall design of the system, hardware and software design and data analytics methods, and designs a smart agriculture monitoring system based on wireless sensor network to provide support for agricultural production.