PROBLEM TO BE SOLVED: To provide a resin composition capable of suppressing an increase in the molecular weight of a copolymer (A1) obtained by polymerizing an unsaturated carboxylic acid (a1) and an epoxy group-containing unsaturated compound (a2), a photosensitive resin composition containing the same, a spacer formed of the photosensitive resin composition, and a display having the spacer.SOLUTION: A resin composition containing an alkali-soluble resin (A) containing a copolymer (A1) obtained by polymerizing an unsaturated carboxylic acid (a1) and an epoxy group-containing unsaturated compound (a2), and a solvent (S) containing propylene glycol monomethyl ether acetate is blended with a compound represented by formula (1).
