The utility model discloses a kind of table top splicing self-locking connecting pieces, it is related to table top splicing connecting piece technical field, including fixed block and
fixed frame, and fixedly connected on the fixed block screw rod, further including cover being positioned cover, connecting rod and decorative cover plate, which are set in the front side of fixed block, screw rod and
fixed frame, the positioning cover and decorative cover plate are fixedly connected in the left and right sides of connecting rod, the right end of the
fixed frame is equipped with the through hole compatible with screw rod, the fixed frame is movably provided with clamping block. The device is locked by the thread cooperation of limiting guide slot and limiting guide block, the clamping block and the fixed block are respectively on two plates, the spacing is adjusted by thread, the clamping positioning is realized, to splice and fix two plates, and can play the effect of straightening and leveling. After fixing, positioning cover, connecting rod and decorative cover plate can be covered and set in the notch of plate for shielding, not only can beautify appearance, but also can further improve structural strength, conducive to increasing bending resistance.