The invention discloses a preparation process of water-emulsion acne-removing essence cream, and belongs to the technical field of cosmetics. According to the scheme, coarse crushed residues are addedinto a grinding frame in a grinding box, a semiconductor chilling plate is started to refrigerate and heat the upper side and the lower side, an ice layer is formed on the inner wall of the grindingframe, then a motor and an electric push rod are started, and a grinding round head grinds the coarse crushed residues in the grinding frame; by the ice layer, on one hand, the inner wall of the grinding frame can be protected, and on the other hand, by means of ice residues generated after the ice layer is broken, the grinding effect of the grinding round head on the coarse crushed residues can be further improved, so that the coarse crushed residues are ground more sufficiently; after grinding is completed, an electrode of the semiconductor chilling plate is converted, a rubber sealing pieceis promoted to be turned upwards and a spherical air bag is driven to move upwards, so that on one hand, the ground coarse crushed residues can be scattered, and on the other hand, the speed of melting ice blocks into water can be increased along with breaking of the ice blocks; and heating continues to be conducted to obtain dried fine powder.