The invention relates to a quasi-distributed landslide soil pressure real-time monitoring device. The quasi-distributed landslide soil pressure real-time monitoring device comprises a soil pressure sensor array and a detection instrument, wherein the soil pressure sensor array is distributed in a landslide, used for receiving a landslide pressure signal and outputting the landslide pressure signal to the detection instrument; the detection instrument is used for collecting the landslide pressure signal, converting the landslide pressure signal into an optical grating wave length electrical signal, conducting calculation according to the optical grating wave length electrical signal and optical grating wave length relevant data presorted in the past, obtaining a current landslide pressure signal and sending the current landslide pressure signal out. The quasi-distributed landslide soil pressure real-time monitoring device is suitable for automatic monitoring of a landslide soil body or solid pressure, human cost for manual operation is saved, the measurement precision and the measurement accuracy are improved, 24-hour all-weather landslide body soil pressure monitoring in the severe environment is effectively achieved, and a new way is provided for geological disaster monitoring and landslide early warning.