The present invention discloses a multifunctional folding spade, which comprises a spade plate and a spade handle, a turntable is welded at the tail end of the spade plate, a spade handle sleeve is provided at the head end of the spade handle, a socket is provided at the head end of the spade handle sleeve, a part of the turntable body is inserted into the socket, the turntable and the spade handle sleeve are provided with matching rotation holes, and a pin shaft passes through the rotation holes to realize the rotating connection between the turntable and the spade handle; the turntable body is further provided with a plurality of angle adjusting holes circumferentially, a locking hole is provided with at the tail end of the spade handle sleeve correspondingly, a locking bolt is provided at one side of the locking hole, a positioning marble is provided at the other side of the locking hole opposite to the locking bolt, the turntable is rotated so that the positioning marble is capable of sinking into any of the angle adjusting holes to position the turntable, and the locking end inside the locking bolt is screwed into the angle adjusting hole at the other side of the spade handle sleeve to lock the turntable; the folding spade provided by the present invention is capable of being quickly and accurately folded and positioned, light in weight, and not easy to lose accessories, and also has a variety of practical functions for outdoor operations.