The utility model relates to an indoor experimental data acquisition system of multichannel frozen soil. The indoor experimental data acquisition of present frozen soil mainly rely on the manual work build with interim combination, can't satisfy the demand of large -scale and multi -factor 's indoor experiment. The utility model discloses a sensor, data acquisition device, data -out port and wireless transmission module, the sensor inserts the data acquisition device through the lead wire, and data -out port and wireless transmission module all connect out from the data acquisition device, the data acquisition device is including the wave filter, AD converter and the data acquisition chip that connect gradually, analog signal is gathered to the sensor, including voltage signal, current signal and resistance signal. The utility model discloses the structure is succinct, and data acquisition automizes, integrates, and place strong adaptability can satisfy large -scale multi -factor 's frozen soil and test the data acquisition demand, is convenient for maintain, can realize the teletransmission of tentation data, is fit for being used for frozen soil analogue test.