A multi-part curable composition includes: an A part including a polyoxyalkylene polymer (A) having a reactive silicon group, a (meth)acrylic ester polymer (B) having a reactive silicon group, and an epoxy resin curing agent (D); and a B part including an epoxy resin (C) and a silanol condensation catalyst (E). The (meth)acrylic ester polymer (B) is a polymer containing constituent monomers including 40 to 70% by weight of an alkyl (meth)acrylate (b1) having an alkyl having 1 to 3 carbon atoms, a monomer (b2) having a reactive silicon group and a polymerizable unsaturated group, and a macromonomer (b3) that is a (meth)acrylic ester polymer having a polymerizable unsaturated group.