The utility model discloses a novel conductive plastic drain bar, including conductive plastic drain bar base plate, conductive plastic drain bar recess, plain conductor and filter membrane, still include two anti - chimney filters, two anti - chimney filters set up respectively in the both sides of conductive plastic drain bar base plate, and the aperture of anti - chimney filter allows moisture to get into, prevents soil particles to get into, and anti - chimney filter is connected through drain pipe and suction pump and is carried out the drainage. The beneficial effects of the utility model are that: anti - chimney filter sets up in the both sides of conductive plastic drain bar base plate, can permit moisture to get into, strains soil particles, avoids in the process of the test moisture to move to both sides along drain bar width direction, destroys soil body structure and produces the transverse crack to increase the displacement.