Concrete floor crack control block

The utility model relates to the technical field of building construction, in particular to a concrete terrace crack control block which comprises a column body, and crack control blocks are arranged at the four corners of the column body. The crack control device comprises four crack control blocks, moving grooves are formed in the two ends of the inner sides of the four crack control blocks correspondingly, two mounting blocks are symmetrically fixed to the inner sides of the four crack control blocks correspondingly, springs are fixed to one sides of the multiple mounting blocks correspondingly, and fixing plates are fixed to the other ends of the multiple springs correspondingly. The concrete floor is novel in design and ingenious in structure, and is fixed with the external corners at the bottoms of wall columns, equipment foundations and the like through the crack control blocks, so that stress concentrated at the external corners is uniformly dispersed and transmitted to all directions of the concrete