In order to measure the individual flow rate of gas and liquid of wet gas two-phase flow without separation on line in situ.a computer system for metering wet gas based on labview has been developed. In this system, a high-performance embedded computer as the core unit has been used. Meanwhile, it consists of an industrial hard disk with wide temperature,a high precision data acquisition module, an industrial 12 inch LCD with wide temperature range, a group of rechargeable lithium battery and so on. The software platform is based on labview, which can achieve signal acquisition, calculate the gas and liquid transient flowrates, display and store data, etc. The application in industrial field shows that computer system developed here has good man-machine interaction interface, high reliability and other advantages.