The invention discloses a plastic dehumidifying coloring mother particle, which is characterized in that the dehumidifying coloring mother particle comprises one or a plurality of calcium oxide, magnesium oxide and tin oxide 11-60 parts by weight, one or a plurality of biphenyl aniline yellow, permanent yellow, indigo, pigment yellow, permanent orange, orange chrome yellow, pigment scarlet, golden light red, scarlet powder, jade lime and carbon black (pigment black) 5-45 parts by weight, one or a plurality of stearate adjuvant, paraffin, coupler, polyethylene wax, brightening agent and brightening agent 8-65 parts by weight, one or a plurality of high-density polyvinyl resin, linear low-density polyvinyl resin, polyacryl resin, ethylene-vinyl acetate copolymer 15-75 parts by weight.