Provided is a composition for an adhesive layer of a non-aqueous secondary battery allowing formation of an adhesive layer that can achieve both high process adhesiveness and high blocking resistance in battery members such as an electrode and a separator. The presently disclosed composition for an adhesive layer of a non-aqueous secondary battery includes a particulate polymer A that has a glass-transition temperature of no higher than 20° C. and a volume-average particle diameter of at least 100 nm and less than 450 nm, and a particulate polymer B that has a glass-transition temperature of at least 30° C. and less than 60° C. and a volume-average particle diameter larger than the volume-average particle diameter of the particulate polymer A.