Soil stratum pollutant monitoring system and method

The invention relates to the technical field of pollutant monitoring and detection, in particular to a soil stratum pollutant monitoring system and method.The soil stratum pollutant monitoring system comprises a drilling tool used for drilling, establishing logging and obtaining a soil sample; the monitoring unit is located in a logging well and comprises multiple sets of packers and multiple sets of screen pipes which are alternately arranged, the screen pipe located at the tail end is used for abutting against a penetration head of a drilling tool, and the packer located at the head end is connected with a protection pipe; a sampler is arranged in each group of screen pipes, the sampler is connected with a ground station through a corresponding sampling pipeline, and the ground station is connected with a packer through a packer control pipe; and the ground station inputs a medium into or pumps out the medium from the packer through the packer control pipe, receives the liquid level, flow and pollutant info