The invention relates to an antibacterial thickened filter mask, comprising a mask body (1); straps (2) are arranged on the left and right sides of the mask body (1), the mask body (1) comprises a gauze layer (1.1), an antibacterial fiber cloth layer (1.2), a filter layer (1.3) and a cotton cloth layer (1.4) that are arranged sequentially from inside to outside. The mask body of the antibacterial thickened filter mask is of four-layer structure, so that the mask has good breathability and moisture absorbability and can filter dust and germs in air; the mask body is in tight fit with the nose outline and the face, such that external viruses and germs are isolated effectively, and vapor from the mouth can be avoided blurring a doctor's lenses.