A multi-channel monitoring device for temperature and moisture content of frozen soil is researched and fabricated. The monitor uses the special capacitive type double-parameter sensor to sense soil temperature and moisture content

uses PIC32 MX150 F128 microcontroller unit（ MCU） as the core

completes the acquisition

storage and transmission timing control

can simultaneously acquire data of 8 channels. At present

the monitoring instrument is applied in Chongli County of Zhangjiakou City

withered poplar frozen soil layer. The practical application shows that the monitoring instrument is stable and reliable

can monitor two kinds of parameters of temperature and moisture content of frozen soil

and provides technical support for geological environment investigation.