Non-oriented electrical steel with excellent magnetic performance and Rm not smaller than 600 MPa

The invention discloses non-oriented electrical steel with excellent magnetic performance and Rm not smaller than 600 MPa, wherein the non-oriented electrical steel is composed of the following components by weight percent: 2.5-3.5% of Si, 0.1-1.0% of Mn, not more than 1.0% of Ni and Al, not larger than 0.005% of N, not larger than 0.015% of S, not larger than 0.003% of C and not larger than 0.05% of P; the production steps are as follows: smelting and continuously casting a bloom; heating the continuously cast bloom; hot rolling; coiling; normalizing; pickling and cold rolling; continuous annealing; and naturally cooling to the room temperature for future use. The mechanical properties and magnetic performance of the non-oriented electrical steel disclosed by the invention can simultaneously satisfy the requirements of motor steel, namely, Rm is not smaller than 600 MPa, Rel is not smaller than 500 MPa, P1.0/400 is not larger than 17 W/kg, B 5000 is not smaller than 1.66 T, and stators and rotors are processed by the same electromagnetic steel plate to reduce the time and material costs.