The invention relates to a production line for extruding an optics-level transparent poly carbonate (PC) sheet, wherein the production line is simple in structure, higher in product quality, and higher in automaticity, and is characterized by sequentially comprising a drying changer, an extruder melting solid particle-shaped PC raw material into colloidal state and outputting the colloidal PC raw material, a mesh changer used for filtering out impurity, a metering pump used for quantificationally outputting the colloidal PC raw material, a forming mould used for generating the sheet, a three-roller calender used for brightening and cleaning the surface of the sheet, a first traction system, a thick detector used for detecting the thickness of the sheet, a second traction system, a laminating device, a static electricity removing device, a third traction system, a material storing frame, a winding mechanism and a cutter. The finished product of the PC sheet achieves the optics level and transparent level, and has the advantages of uniformity in quality, bright and clean surface, and the like.