The invention discloses a pitaya supporting device for conveniently irrigating and picking pitaya. The pitaya supporting device structurally comprises a height adjustment handwheel, a water tank, a lifting sliding plate, carrier frame mechanisms, a lifting rod and a fixed
chassis, wherein the fixed
chassis has a circular structure and is mounted at the bottom of the lifting rod in a
welding manner; and the height adjustment handwheel is arranged on the top of the lifting rod and is connected with the lifting rod in a buckling manner. According to the pitaya supporting device disclosed by the invention, fruits pass through the middle of a supporting
assembly, and can be supported by a
rotating disc after the fruits are grown up; a suspension mechanism is used for suspending and positioningtree stems located at a joint of the fruits, so that dragging of the bottoms of the fruits can be avoided; a through hole formed in the middle of the
rotating disc is used for enabling the fruits to pass through during fruiting, so that the fruits are wrapped by using the
rotating disc after being grown up, so that
cutting and separation are conveniently carried out by using a
cutting edge later;and a spray disc arranged in the rotating disc can comprehensively irrigate and spray the surfaces and the bottoms of the fruits, so that
nutrition absorption capacity of the fruits is effectively improved, the situation that the sizes of the grown-up fruits are close is ensured, and the sale benefits are increased.