[Problem] The present invention provides a manufacturing method and apparatus of an organic resin coated metal sheet which can surely remove resin portions projecting from both edges of a metal sheet. [Means for Resolution] A long strip metal sheet 1 is continuously fed using a metal-sheet supply means 13. Temperatures of edge portions 1a, 1b of the metal sheet 1 and a temperature of an approximately central portion 1c of the metal sheet 1 are respectively measured using a metal-sheet temperature measuring means 7 arranged directly upstream of lamination rolls 10. Respectively measured temperature values are inputted to a heating temperature control means 14. An output value calculated by the heating temperature control means is inputted to a metal sheet center portion heating means 3 arranged directly upstream of the T-die 8 so as to heat a widthwise approximately center portion of the metal sheet 1 to a first temperature by the metal sheet center portion heating means 3. Output values calculated by the heating temperature control means 14 are fed to metal sheet edge portion heating means 5 arranged directly upstream of the T-die 8 so as to heat the widthwise edge portions of the metal sheet 1 to a second temperature higher than the first temperature by the metal sheet edge portion heating means 5. A resin film is extruded to pre-rolls 9 such that the resin film projects from both widthwise edge portions of the metal sheet 1. The resin film is applied to the metal sheet 1 by sandwiching and pressure-bonding the metal sheet 1 and the resin film between a pair of lamination rolls 10. Resin portions 2a in a semi-molten state and projecting from both edge portions of the metal sheet are removed by press cutting.