Abstract: This paper researches the service building and concurrency control in wireless sensor networks (WSNs). Due to the characteristic of limited resources such as energy, communication, computing and storage in WSNs, a WSN service management approach and a reasoning-based context-aware workflow to build WSN services are proposed. By abstracting the semantic information from sensor data, the loose couple between the upper business logic and lower sensor data can be achieved and the resource reuse can further realized. In addition, the traditional concurrency control methods are improved. With the help of repeat and collision detection, more effective WSN service concurrency control can be received.