Through VB programming, a realtime transmission and quality control software of surface weather observation data from automatic weather stations is developed to replace the communications networking interface software. It can not only solve the problem of communication software termination when the backup dialup fails, but also review the elements of realtime observations. In case of abnormal transmission and data, the system dials through a modem to set mobile phone alarm, timely reminding the operator on duty. It is compatible with the networking and communications interface software, and if there is no file transferred within the first six minutes, it will launch the network communications interface software automatically. The application of the software in automatic weather stations can greatly reduce the abnormal and missing observations, and improve the timely transfer rate of meteorological data.