NOVELTY - A back surface protection sheet (6) comprises adhesion reinforcing layer (62) arranged on an outermost layer of the back surface protection sheet and light-shielding layer (61) having thickness of 1-30 mu m, laminated on a shell layer (622) of the adhesion reinforcing layer. The adhesion reinforcing layer reinforces adherence with sealing material, and triple-layer co-extrusion film of shell layer/core layer (621)/shell layer. The core layer contains 80 %mass or more polypropylene resin having melting point of 160 degrees C or more with respect to total content of the resin.    USE - Back surface protection sheet is used for solar cell module (claimed).    ADVANTAGE - The back surface protection sheet has excellent adhesiveness with respect to base material, adhesive stability, rework property, solvent resistance and weather resistance. The solar cell module with high productivity, is manufactured using the back surface protection sheet by an economical process.    DETAILED DESCRIPTION - A back surface protection sheet comprises adhesion reinforcing layer arranged on an outermost layer of the back surface protection sheet and light-shielding layer having thickness of 1-30 mu m, laminated on a shell layer of the adhesion reinforcing layer. The adhesion reinforcing layer reinforces adherence with sealing material, and triple-layer co-extrusion film of shell layer/core layer/shell layer. The core layer contains 80 %mass or more polypropylene resin having melting point of 160 degrees C or more with respect to total content of the resin. The shell layer contains 50 %mass or more polypropylene resin having melting point of 120 degrees C or more and containing ethylene unit. The light-shielding layer comprises coating layer having thickness of 10-100 mu m and film having thickness of 100 mu m or less.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic cross-sectional view of the back surface protection sheet.    Back surface protection sheet (6)    Light-shielding layer (61)    Adhesion reinforcing layer (62)    Core layer (621)    Shell layer (622)