The invention discloses a solar cell backsheet repair solution. The solar cell backsheet repair solution comprises, by weight, 20-30 parts of epoxy acrylate resin, 20-30 parts of polyurethane acrylic resin, 20-40 parts of fluorine resin, 5-10 parts of photoinitiator and 10-20 parts of cosolvent. The repair solution is low in cost, simple in use method, high in curing rate and excellent in ageing-resistant performance, and good adhesive force is achieved between the repair solution and a backsheet substrate or a weather-proof layer.