The utility model discloses a novel digging bucket connecting device which comprises a pin shaft, a bucket and a bucket rod. The pin shaft penetrates through installing holes to enable the bucket and the bucket rod to be movably connected. Pressing plates are arranged at two ends of the pin shaft. The pressing plates fix the pin shaft through bolts corresponding to screw holes. The novel digging bucket connecting device is characterized in that T-shaped lantern rings after heating process are arranged at the connecting positions of the installing holes and the pin shaft. Grooves are formed in the middle of flange protruding faces of the T-shaped lantern rings. Flat angle grooves are formed in the rims of the external sides of the flange protruding faces. The inner sides of the flange protruding faces are attached to a lug plate of the bucket, and the external sides of the flange protruding faces are attached to the bucket rod. A quench end face is arranged at the contacting face of the external sides of the flange protruding faces and the bucket rod. The novel digging bucket connecting device is novel in design, reasonable in structure, and capable of improving abrasion-resisting performance of the connecting face of the bucket and the bucket rod due to the fact that the heating-processed T-shaped lantern rings are additionally arranged on the bucket and the bucket is movably connected with the bucket rod through the pin shaft. The novel digging bucket connecting device solves the problems that abrasion performance is poor, processing wastes time and effort and service life is short in the prior art.