The invention relates to a moon cake forming machine, which consists of a machine table, a biscuit lead-in conveying mechanism, a biscuit surface powder distributing mechanism, a biscuit parison adjusting mechanism and an imprinting forming mechanism, wherein the biscuit lead-in conveying mechanism consists of a conveying belt, a tensioning roller, a drive mechanism and a guide plate; the biscuit surface powder distributing mechanism consists of a powder hopper and a powder distributer; the biscuit parison adjusting mechanism consists of a biscuit double-face leveling part and a side wall surface shaping part; and the imprinting forming mechanism consists of an imprinting die, an imprinting link mechanism and a cylinder. The entire machine has smart structural design, and realizes accurate control of the quantity and the distribution density of demolding dry powder and even powder distribution on biscuit surface; moreover, the moon cake forming machine has the characteristics of good forming effect, quick speed, easy demolding and no mold sticking.