Oled display motherboard, packaging system and packaging method thereof

The present invention belongs to the technical field of an organic light-emitting diode (OLED). The present invention discloses an OLED display motherboard, packaging system and packaging method thereof, and can address a problem of an unfavorable sealing performance of a current OLED display motherboard. The OLED display motherboard comprises a package plate (10) and an OLED substrate (20) corresponding thereto, wherein a sealant is provided between the package cover plate (10) and the OLED substrate (20). The sealant is provided in a peripheral region of the OLED display motherboard, and the sealant comprises a hot-melt adhesive (11).