GRAIN-ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR MANUFACTURING SAME

The present invention pertains to a grain-oriented electrical steel sheet and a method for manufacturing same. The grain-oriented electrical steel sheet according to an embodiment of the present invention comprises: by wt%, a base material containing 2.5~4.0 wt% of Si, 0.005 wt% or less of C, 0.015~0.040 wt% of Al, 0.04~0.15 wt% of Mn, 0.005 wt% or less of N, 0.03~0.10 wt% of Sn, 0.05~0.2 wt% of Cr, 0.010~0.050 wt% of P, and 0.01~0.05 wt% of Sb, with the remainder comprising Fe and inevitable impurities; and a metal oxide layer disposed on the base material, and has an average iron loss (W17/50) of 0.80 W/kg or less, wherein the maximum emission intensity ratio of the metal oxide layer may satisfy Expression 1. ICr/I_maxMg≤2% (In Expression 1, I(Cr) is the intensity of Cr in the metal oxide layer, and I_max(Mg) denotes the maximum emission intensity of Mg in the metal oxide layer)