Electrical steel sheet and manufacturing method therefor

An electrical steel sheet comprising:

• an electrical steel sheet base substrate;
• and
• a scale layer present in an inner direction from a surface of the electrical steel sheet base substrate,
• wherein a thickness of the scale layer is 1 to 100 nm, and
• the electrical steel sheet base substrate includes, in wt %, C at 0.1% or less, Si at 6.0% or less, P at 0.5% or less, S at 0.005% or less, Mn at 1.0% or less, Al at 2.0% or less, N at 0.005% or less, Ti at 0.005% or less, Cr at 0.5% or less, and the balance of Fe and inevitable impurities.