The invention relates to an adsorption box for filtering harmful substances from cigarettes. Raw mineral materials formed by mixing the following materials including air adsorbent particles, negative iron balls, far infrared ray balls, coconut shell active carbon, tourmaline balls and Chinese eaglewood powder are contained in a stainless steel box with air holes, the materials are uniformly stirred and are respectively contained into stainless steel boxes with air hole mesh grills, and the boxes are carried and inserted to the two sides of the inner wall of a cigarette box, wherein the mass ratio of the air adsorbent particles to the negative iron balls to the far infrared ray balls to the coconut shell active carbon to the tourmaline balls is 5:2:1:1:1, and the Chinese eaglewood powder is added during the stirring. The adsorption box has the beneficial effects that the mineral materials are alkaline; the raw materials are contained in the stainless steel boxes with the air holes, after the dissolution in water with the pH value about 7.8, the pH value is 9.2, the boxes are carried and inserted to the two sides of the inner wall of the cigarette box, so that the cigarettes are in an alkaline sealed state for a long time, and a neutralizing effect is realized on some acid substances in the cigarettes; adsorption effects are achieved on carbon monoxide, tobacco tar and other spicy and harmful substances in the cigarettes. The invented adsorption cigarette box is called as a weak-alkaline cigarette box.