The invention discloses a sharing type engine rack. The sharing type engine rack comprises a rack body; two rows of engine placement stations are arranged on the rack body; and each engine placement station is provided with a positioning pin, four fixing and positioning blocks, three movable pressing pins and a turnover positioning part, wherein each turnover positioning part comprises a turnover positioning block, a connecting block and a fixing bracket. According to the sharing type engine rack, in each engine placement station, the four fixing and positioning blocks, the three movable pressing pins and the turnover positioning part capable of being turned over can be combined and switched into three sets used for positioning and supporting engines with three types and specifications, wherein the two fixing positioning blocks on the inner side and the two fixing positioning blocks on the outer side are mutually staggered and diagonally opposite to each other, meanwhile, diagonal positioned parts of an engine of each type can be ensured to be supported and positioned by the positioning blocks, the three movable pressing pins can also be grouped to carry out pressing, pressed parts of the two sides of the engine of each type are distributed reasonably, and therefore the engines are ensured to be locked firmly.