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In order to improve the working efficiency of airfield refueling oil operation and to reduce the working intensity of workers in airfield, an information management system for airfield refueling based on mobile WSN (Wireless Sensor Network) nodes is designed. The system consists of the circuitry design for RDTU (Remote Data Terminal Unit), hand manager for oil supply and central communication monitoring system, it also includes the software programming for wireless communication module, mobile RDTU and central communication monitoring system. The experiment results in real field demonstrate that the system designed in this paper has high measurement precision for oil flow quantity, accurate data transfer, anti-disturbance and small time-lapse in communication channel. Therefore, the research work in this paper has important application value.