Abstract: In order to solve problems of multi-wire and multi-point measuring mode used in ground freezing construction in China at present such as large cable dosage, complex wiring and installation, high cost and large transmitting waste of signal, the paper proposed a design scheme of monitoring system of ground freezing by use of 1-wire technology and introduced software and hardware designs of the system. Application of the system in freezing construction of submine of Zhangji Coal Mine verified stability and reliability of the system, but forecasting function of the system needs to be perfected and improved further.