Abstract: The paper describes the programming process of temperature and humidity smart sensors' network software. The software is designed by using Visual Basic language, Microsoft Access databases and asp technology. It is made up of two parts, the server and the terminal part, and it has realized long-distance controlling, long-distance data acquisition and long-distance data querying. The software can be well used on intranet network (including internet network with fast speed), and can also be widely applied in other long-distance control fields.