The purpose of the present invention is to provide a sealant for an organic electroluminescent (EL) display element, which has inkjet coating properties, low outgassing properties, and outstanding adhesion to a substrate and an inorganic material film, and with which it is possible to obtain an organic EL display element with outstanding reliability. The present invention is a sealant for an organic EL display element, containing a curable resin and a polymerization initiator, wherein: the curable resin contains a compound represented by formula (1) and a compound represented by formula (2); the content of the compound represented by formula (1), by weight ratio, is 1.0–1.5 times the content of the compound represented by formula (2); the viscosity of the entirety of the sealant for the organic EL display element is 40 mPa·s or less at 25°C; and the surface tension of the entirety of the sealant for the organic EL display element is 15–35 mN/m. In formula (1): each R1 is independently a bonding hand, a straight-chain or branched-chain C1–18 alkylene group, or a straight-chain or branched-chain C2-18 alkenylene group; R2 is a straight-chain or branched-chain C1-18 alkylene group or a straight-chain or branched-chain C2-18 alkenylene group; and n is 0 or 1.