The invention discloses a net cover packaging machine for a spherical fruit and relates to a packaging machine. The packaging machine is characterized in that a membrane disc, a membrane expanding cylinder, a lower membrane clamping cylinder, a membrane expanding cone body and a tray are sequentially connected from top to bottom on a frame; a charging slide way and a discharging slide way are respectively arranged at the left and right sides of the tray; a pushing and cutting mechanism is arranged between the charging slide way and the bottom left of the membrane expanding cylinder; a clip is arranged at the right side of the membrane expanding cylinder; a front ball screw sliding table is arranged in front of the lower membrane clamping cylinder and the tray; a rear ball screw sliding table is arranged behind the membrane expanding cone body; a synchronous belt sliding table is arranged behind the pushing and cutting mechanism. The net cover packaging machine disclosed by the invention has the advantages of realizing automatic packaging of a net cover for the spherical fruit, improving the packaging efficiency of the net cover for the spherical fruit, increasing the utilization rate of a net cover membrane, reducing the manual labor intensity, improving the freshness and completeness of marketed fruit products, and lowering the production cost.