The reinforced plastic commutator comprises a commutator 1 and a molding compound 2. The legs 3 of the commutator segments are double-dove-tails and the body parts 4 of the commutator segments are trapezoidal and the commutator segments The portion 4 and the leg portion 3 are connected in a "T" -shaped configuration. Reinforced plastic commutator solves the problem of less adhesion between commutator piece and molding compound, can effectively eliminate the rupture of the plastic commutator in the motor work, the phenomenon of flyer, strengthen the product's Mechanical strength, reduce the rejection rate, improve the commutator product quality.