Method for producing grain-oriented electrical steel strip based on continuous thin-slab casting, comprising the following production steps: a) melting a steel which in addition to iron and unavoidable impurities contains (in % mass) Si: 2.5 - 4.0 %, C: 0.01 - 0.10 %, in each case optionally - up to 0.50 % Mn, - 0.003 - 0.04 % S, - 0.003 - 0.04 % Se, - up to 0.07 % Al, - up to 0.015 % N, - up to 0.05 % Ti, - up to 0.3 % P, - one or more elements from the group As, Sn, Sb, Te, Bi in each case having contents of up to 0.2 %, - one or more elements from the group Cu, Ni, Cr, Co, Mo in each case having contents of up to 0.5 %, - one or more elements from the group B, V, Nb in each case having contents of up to 0.012 %, b) continuous casting of the melt to form a strand, c) dividing the cast strand into thin slabs, d) annealing the thin slabs in an in-line furnace at a thin slab temperature of 1050 - 1300°C, e) continuous hot rolling of the thin slabs in an in-line multiple stand hot-rolling mill train into a hot strip having a thickness of 0.5 - 4.0 mm, f) cooling the hot strip, g) winding the hot strip into a coil, h) optionally: annealing the hot strip after coiling or before cold rolling, i) cold rolling the hot strip into a cold strip having a final thickness of 0.15 mm to 0.50 mm, j) recrystallisation and decarburisation annealing of the cold strip, k) nitriding the cold strip under an atmosphere containing ammonia at a nitriding temperature of 850 - 1050°C which takes place during or after decarburisation annealing, l) applying an annealing separator to the strip surface, m) final annealing of the recrystallisation and decarburisation annealed cold strip to form a Goss texture, n) optionally: coating the finally annealed cold strip with an electrical insulator and subsequently stress-relief annealing the coated cold strip, o) optionally: domain refinement of the coated cold strip, characterised in that after nitriding (production step k) and before applying the annealing separator (production step 1) the cold strip passes through a subsequent oxidation annealing step with an annealing time of 15 - 180 s and a subsequent oxidation annealing step temperature T NO of 750 - 900°C under an annealing atmosphere containing hydrogen, the partial pressure ratio p H2O /p H2 of which plotted against the respective temperature T NO lies within an area which is determined by the vertices P1 (T NO = 750°C; p H2O /p H2 = 0.1), P2 (T N0 = 900°C; p H2O /p H2 = 0.2), P3 (T NO = 750°C; p H2O /p H2 = 0.42) and P4 (T NO = 900°C; p H2O /p H2 = 0.52). a) melting a steel which in addition to iron and unavoidable impurities contains (in % mass) Si: 2.5 - 4.0 %, C: 0.01 - 0.10 %, in each case optionally - up to 0.50 % Mn, - 0.003 - 0.04 % S, - 0.003 - 0.04 % Se, - up to 0.07 % Al, - up to 0.015 % N, - up to 0.05 % Ti, - up to 0.3 % P, - one or more elements from the group As, Sn, Sb, Te, Bi in each case having contents of up to 0.2 %, - one or more elements from the group Cu, Ni, Cr, Co, Mo in each case having contents of up to 0.5 %, - one or more elements from the group B, V, Nb in each case having contents of up to 0.012 %, - up to 0.50 % Mn, - 0.003 - 0.04 % S, - 0.003 - 0.04 % Se, - up to 0.07 % Al, - up to 0.015 % N, - up to 0.05 % Ti, - up to 0.3 % P, - one or more elements from the group As, Sn, Sb, Te, Bi in each case having contents of up to 0.2 %, - one or more elements from the group Cu, Ni, Cr, Co, Mo in each case having contents of up to 0.5 %, - one or more elements from the group B, V, Nb in each case having contents of up to 0.012 %, b) continuous casting of the melt to form a strand, c) dividing the cast strand into thin slabs, d) annealing the thin slabs in an in-line furnace at a thin slab temperature of 1050 - 1300°C, e) continuous hot rolling of the thin slabs in an in-line multiple stand hot-rolling mill train into a hot strip having a thickness of 0.5 - 4.0 mm, f) cooling the hot strip, g) winding the hot strip into a coil, h) optionally: annealing the hot strip after coiling or before cold rolling, i) cold rolling the hot strip into a cold strip having a final thickness of 0.15 mm to 0.50 mm, j) recrystallisation and decarburisation annealing of the cold strip, k) nitriding the cold strip under an atmosphere containing ammonia at a nitriding temperature of 850 - 1050°C which takes place during or after decarburisation annealing, l) applying an annealing separator to the strip surface, m) final annealing of the recrystallisation and decarburisation annealed cold strip to form a Goss texture, n) optionally: coating the finally annealed cold strip with an electrical insulator and subsequently stress-relief annealing the coated cold strip, o) optionally: domain refinement of the coated cold strip,