The invention discloses a multifunctional flower feeding machine. According to the technical scheme, the multifunctional flower feeding machine comprises a framework, an ejecting/withdrawing mechanism, a watering device and a roller shutter mechanism, wherein the ejecting/withdrawing mechanism, the watering device and the roller shutter mechanism are arranged on the framework; the ejecting/withdrawing mechanism comprises a base which is controlled by a motor and a ball screw to move forwards and backwards; the lower end of the base is in sliding fit with a track arranged on the frame; a towingbracket is arranged at the upper end of the base; a flowerpot frame used for containing a flowerpot is arranged on one side of the towing bracket; a hanging door is in pin joint with one side of theframe; pull ropes are connected to two sides of the upper end of the hanging door; the other end of each pull rope is connected with the base through an idler wheel; the watering device comprises a water tank arranged above the flowerpot frame; the bottom cover of the water tank is connected with a connecting rod; the lower end of the connecting rod extends to one side of the towing bracket and ismatched with a cam; one end of the cam is fixedly provided with a gear; the gear meshes with a gear rack fixed on the base of the ejecting/withdrawing mechanism; the roller shutter mechanism comprises curtain rolling rods arranged at the front end and the rear end of the frame; the end parts of curtain rolling rods are linked with each other through the arrangement of a belt wheel and a strip belt; and one of the curtain rolling rods is driven to rotate by the belt wheel, the strip belt and a motor.