Manufacturing mould of D-shaped soft mattress component

The utility model provides a manufacturing mould of a D-shaped soft mattress component. The manufacturing mould comprises an upper mould and a lower mould which are matched with each other, wherein lower mould openings used for casting the mattress component are evenly formed in the lower mould in rows and in lines, and upper mould openings correspondingly matched with the lower mould openings are formed in the upper mould openings, a concrete block connecting piece is arranged between the upper mould and the lower mould, and the concrete block connecting piece is composed of a plurality of polypropylene ropes distributed in a grid shape; the node of every two intersected polypropylene ropes and the centers of the lower mould openings and the upper mould openings corresponding to each other are located on the same line, and two ends of each polypropylene rope are exposed to the peripheral edges of the upper mould and the lower mould. According to the manufacturing mould, the mechanical construction is achieved, the labor amount of construction is greatly lowered, the construction efficiency is improved, the influence of construction on the navigation is reduced, and the construction quality is guaranteed.