The invention discloses a multifunctional plastic bag handle which comprises a handle body. The handle comprises a handle and a hanging ring which are integrally arranged, the bottom of the handle is in a convex-concave shape, and a hook is fixed at the center of the bottom of the hanging ring. A battery and a weighing sensor are arranged in the handle, the top of the handle is provided with a display screen capable of emitting light and a power switch, and a lighting lamp is arranged on one side of the handle. The hanging ring is in a U shape, and one side of the hanging ring is provided with an opening. The top of the handle is further provided with a weighing peeling switch. When the multifunctional plastic bag handle is in use, a plastic bag is directly placed on the hook or placed on the inner side of the U-shaped hanging ring through the opening of the hanging ring, and the plastic bag can be lifted when the handle is held with the hand. Due to the fact that the bottom of the handle is in the convex-concave shape, the fingers do not get fatigue easily. In addition, during the vegetable buying or the shopping, a heavy can be weighed only by turning on the power switch on the handle and hanging the heavy on the hook. Besides, the lighting lamp on the handle can also facilitate the walking or weighing when it is dark.