Prefabricated hollow slab pouring box

The utility model provides a prefabricated hollow slab pouring box which comprises a bottom plate, a bottom die is arranged at the top of the bottom plate, side dies are arranged on the two sides of the bottom die, side supports corresponding to the side dies are arranged on the bottom plate, and adjusting mechanisms matched with the side supports are arranged on the bottom plate. The adjusting mechanism is used for driving the side bracket to press and fix or release the side mold away from the side bracket; end covers are detachably and fixedly arranged at the end parts of the side dies and the bottom die, and core die holes are formed in the end covers; according to the utility model, the width is limited by the bottom die and the length of the side die is limited, so that the processing precision of the hollow beam can be ensured, frequent measurement is not needed in the production process, the production speed and efficiency can be improved, and rapid batch production can be met. 本实用新型提供一种预制空心板浇筑箱，包括底板，