N,N'-2-(4,6-dichloro-1,3,5-triazine-2-amino)-dimethylpropylamine(TAMP) was synthesized by cyanuric chloride and 3-dimethylaminopropylamine in the medium of acetone and water, and was characterized by FT-IR and 1H-NMR. Taking the delimed and softened sheepskin as the tanning experimental material, and taking the shrinkage temperature and physical sense of tanned leather as an inspection index. The suitable tanning conditions were determined by single factor experiment: dosoage of TAMP 20% (based on the mass of limed skin), the tanning process adopts step temperature control mode of 25℃, 35℃ and 45℃, and the tanning time of each temperature stage is 1h, 1.5h and 3 h in turn; In the dyeing experiment of tanned leather, the influence of TAMP tanned leather on the absorption and binding properties of dyes was evaluated by the aid of dye uptake and fastness to wet and dry rubbing. The results indicated that the shrinkage temperature of TAMP primary tanned leather could reach 71.6℃, and the grain surface is white and delicate; The tear strength was 34.00N/mm2,the tensile strength was 71.33N/mm, the dye uptake was 96.8%, and the color fastness to dry/wet rubbing was 2.0-4.0. The physical properties of TAMP primary tanned leather are higher than those of F-90 tanned leather. This experimental study provides a novel technical idea and way for the development and application of chrome-free tanning agents.