To achieve the automatic remote measurement with ultrasonic instrument, an integrated ultrasonic measurement system is developed with data transmission via wireless sensor networks. The system consists of the ultrasonic instrument, the ultrasonic data collection nodes, the wireless sensor network nodes and the terminal coordinator nodes. ZigBee protocol is used for the wireless data transmission between nodes. The ultrasonic data collection node is connected with the ultrasonic measurement instrument. Sensor nodes form a self-organized wireless data transmission network with the centre of coordinator nodes.