To provide a sealing member of a solar cell that can be fused and formed in a film, can be bonded to various kinds of substrates of the solar cell for ultraviolet hardening, and has excellent transparency and protection operation.

This sealing member for an ultraviolet hardening solar cell sets ethylene-family polymer (A) having a glycidyl(meta)acrylate unit to a skeleton, and is composed of ultraviolet hardening ethylene-family polymer where carboxylic acid having a functional group that is selected from a group consisting of styril, cinnamyl, and cinnamylidene groups or its functional derivative (B) is grafted.