The invention relates to a radiation protection garment with a dirt-resistant collar. The radiation protection garment comprises a garment body (1), wherein a filter layer (2) is arranged on the collar of the garment body (1), the filter layer (2) is a filter membrane, a collecting layer (3) is arranged below the filter layer (2), the collecting layer (3) is cotton cloth, the garment body (1) is made from fabric, the fabric is formed through the weaving of warps and wefts, the warps are formed by nanometer metallic shield fibers, and the wefts are formed by tencel fiber yarns. When a wearer sweats, water in sweat can be separated from other impurities by the filter layer, the water can penetrate through the filter layer, other impurities are filtered out and finally attached to the cotton cloth, and the cotton cloth can be detached and washed, so that the collar of the garment cannot be dirtied. The garment is multicolor.