Multi-functional lifting stool with toolbox

The invention relates to a multi-functional lifting stool with a toolbox. The lifting stool can be used as not only a stool but also a small desk or ladder after being lifted by a mechanism. When an operator sits on the lifting stool to rotate a handle clockwise, a screw rod rotationally drives a front slider and a rear slider to move towards the middle along the screw rod and simultaneously drives a connecting rod component to move upwards to lift a stool holder upwards; when the front slider and the rear slider move to the middle of the screw rod, the connecting rod component moves to the highest position; and self-lock devices of the front slider and the rear slider are locked and the sliders cannot move backwards so that the stool realizes the function of a ladder. When the operator rotates the handle anticlockwise, the screw rod rotationally drives the front slider and the rear slider to move towards the two ends along the screw rod and simultaneously drives the connecting rod component to move downwards so as to drive the stool holder to move downwards, thus the function of a common stool is realized. When being used as a stool or a small desk, the lifting stool takes up small space, can move conveniently and flexibly, and is widely applied to home furnishing and other places.