The invention relates to a bioactive percolated domestic sewage treatment device, which is a sewage treatment device using land percolation technology and is suitable for various sewage treatment departments and users. The device comprises a water inlet part, a percolation part and a water outlet part; the water inlet part comprises a water inlet, a water inlet pipe, a water inlet grating and a water inlet settlement grating, wherein the water inlet is arranged on one side of the water inlet settlement grating, the water inlet settlement grating is provided with a water inlet of the water inlet settlement grating, and the water inlet grating is adjacent to the water inlet settlement grating; the percolation part is arranged between the water inlet part and the water outlet part; the percolation part comprises a percolation grating and a top cap, the top of the percolation grating is provided with the top cap, and two gratings arranged in the percolation grating divides the percolationgrating into three layers from the top to the bottom, namely an adsorption filter material layer, a bioactive filter material layer and an oxidation filter material layer respectively, wherein one side at the bottom of the oxidation filter material layer is provided with a percolation grating water inlet, and one side of the adsorption filter material layer is provided with a percolation grating water outlet; and the water outlet part comprises a water outlet, a water outlet grating and a water outlet settlement grating, wherein the water outlet is arranged on one side of the water outlet grating.