Non-oriented electrical steel sheet and manufacturing method therefor

A method of manufacturing a non-oriented electrical steel sheet, the method comprising:

• heating a slab including, by weight %, Si:
• 1.5 to 6.5%, Al:
• 0.0005 to 3.5%, Mn:
• 0.01 to 3.0%, Cr:
• 0.005 to 5.0%, S:
• 0.0005 to 0.03%, and a balance of Fe and inevitable impurities at 1050 to 1220° C.;
• finishing hot-rolling the slab and obtaining a hot-rolled sheet;
• hot-rolled sheet annealing the hot-rolled sheet for 30 to 300 seconds at 850 to 1150° C.;
• cold-rolling the hot-rolled sheet annealed hot-rolled sheet and obtaining a cold-rolled sheet;
• heating the cold-rolled sheet;
• and
• final annealing the heated cold-rolled sheet,
• wherein, in the cold-rolling, [Relational expression 2] is satisfied,
• wherein, in the heating, a heating rate in a temperature range of 300 to 500° C. is 5 to 150° C./s, and
• wherein, in the final annealing, a gas atmosphere includes, by volume %, hydrogen:
• 15 to 99.99%, oxygen:
• 0.0001 to 0.0030%, and a remainder of inert gas.