Abstract: For the problem of high cost of traditional industrial pressure meters caused by laying cables for data transmission, the paper introduced design schemes of software and hardware of a wireless pressure meter based on WIA-PA in details. The meter is on the basis of WIA-PA wireless network technology and uses CC2431 with 2.4 GHz radio frequency function as a main processor, which has low cost, flexible networking and high security and reliability of data transmission. The application in industrial field showed that the meter can transmit data in a few hundred meters and the error rate is less than 1%.