An ammonia absorbing material, a preparing method thereof and applications of the material are provided. The ammonia absorbing material includes strontium chloride, calcium chloride, magnesium chloride and barium chloride, wherein the sum of the mass of the calcium chloride, the mass of the magnesium chloride and the mass of the barium chloride is 15-90% of the mass of the material, and the mass of the strontium chloride is 10-85% of the mass of the material. By adoption of the material, the ammonia absorption time can be shortened, and the ammonia charging speed and efficiency are increased.