The invention discloses a receiving cup conveying belt of a sheet forming machine, and relates to a sheet forming machine, which comprises a belt conveying mechanism and is characterized by also comprising a product hoisting and transferring mechanism, wherein the belt conveying mechanism comprises a rack, a driving mechanism, a driving wheel, a driven wheel and at least two mutually parallel conveying belts, the driving wheel and the driven wheel are respectively fixed on the rack in a rotatable mode, each conveying belt is respectively sleeved on the driving wheel and the driven wheel, the driving mechanism is connected with the driving wheel, and the product hoisting and transferring mechanism is fixed on the rack and is positioned between the driving wheel and the driven wheel and at the inner side of each conveying belt. According to the conveying belt disclosed by the invention, the situation of product toppling-over is effectively avoided, so that the number of products conveyed by the transferring mechanism every time can be greatly increased, the working efficiency is effectively improved, and the need of large-scale industrial production can be met.