The invention relates to the technical field of 
mascara cosmetics, and particularly discloses lasting waterproof slimming 
mascara cream and a preparation method thereof. The 
mascara cream comprises 5-10 parts of 
microcrystalline wax, 17-29 parts of a film-forming agent, 1-3 parts of trihydroxy 
stearin, 0.5-1 part of stearoyl 
inulin, 5-9 parts of hydrogenated polyisobutene, 6-10 parts of 
isododecane, 15-25 parts of cyclopentasiloxane, 2-5 parts of dimethyl silylated silica, 2-5 parts of silica, 0.11-0.45 part of a 
preservative, 15-20 parts of a thickener and 5-9 parts of a colorant. The preparation method comprises the following steps: mixing 
microcrystalline wax, a VP / Eicosene 
copolymer, trihydroxy 
stearin, stearoyl 
inulin, hydrogenated polyisobutene and 
isododecane to obtain a phase A, adding trimethylsiloxy 
silicate and dimethyl silylated silica into cyclopentasiloxane, mixing, and adding into the phase A to obtain a mixture; sequentially adding the 
preservative, the silica, the thickener and the colorant into the mixture, mixing, and 
grinding to obtain the mascara cream. The mascara cream has the advantages of being good in waterproof performance and quick to dry.