The invention discloses a turnover type medical oxygen bottle carrier convenient to load and unload. Two wheels are installed on the two sides of a vehicle frame, two universal trundles are installed on the rear side of the vehicle frame, the front ends of four arms are each provided with a clamping plate, the rear sides of the four arms are all rotationally connected with an overturning frame, a first connecting rod is rotationally connected with a second arm and a fourth arm, and a second connecting rod is rotationally connected with a third arm and a fourth arm. The second connecting rod is rotatably connected with the first arm and the third arm, the turnover frame is rotatably connected with the frame, the hydraulic pipe communicates with the hydraulic pump and the hydraulic cylinder, the hydraulic cylinder can be stretched by stepping on the pedal, the first connecting rod and the second connecting rod are driven by the transverse groove rod to move upwards, and therefore the oxygen bottle is clamped by the four clamping plates, and the thrust of the hydraulic cylinder can be removed by stepping on the pressure release valve. A first spring and a second spring can pull a first connecting rod and a second connecting rod downwards, four clamping plates release the clamping of the oxygen bottle, a turnover frame swings forwards to enable two front supporting wheels to be in contact with the ground, at the moment, the clamping and releasing processes of the oxygen bottle are achieved, and the turnover frame swings backwards and is locked to achieve the transportation of the oxygen bottle.