PURPOSE: To provide a method for manufacturing a plastic sheet for lining wherein a plastic sheet, particularly a semihard vinyl chloride resin sheet which has a thickness sufficiently uniform in the cross direction, a rear face with excellent adhesion, a top face having a fine skin layer, and excellent dimensional stability at adhering by a thermally activating adhesive, can be easily manufactured by the extrusion method.

CONSTITUTION: In a method for manufacturing a plastic sheet, a plasticizer- containing resin is extruded so as to produce a band-like form, and the band-like resin is passed through a polishing roll 3 and further drawn by a drawing roll 5 through a transfer cooling section 4. One face of the band-like resin is roughened by a roughening device 7 close to the drawing roll 5.