The invention provides a lightweight wheelbarrow and belongs to the field of human-powered transport means. The lightweight wheelbarrow comprises a frame and a wheel; a handle is mounted on the frame;the wheel is mounted on the frame and located in front of the handle; a fixed carrier and a folding carrier are mounted on the left and right sides of the wheel correspondingly; the fixed carrier isfixedly mounted on the frame, and the folding carrier is placed on the upper surface of the fixed carrier; one end of the folding carrier services as a connection end, and the other end of the foldingcarrier services as a free end, wherein the connection end is rotationally connected with the side, close to the wheel, of the fixed carrier; clamping rods are further arranged on the left and rightsides of the wheel and located on the upper portions of the fixed carrier and the folding carrier in the unfolded state; and the clamping rods are mounted on the frame, and parts of clamping rods arelocated in a space formed by the folding carrier in the folded state and the frame, and one ends of the clamping rods penetrate through the folding carrier and stretch out of the space. The lightweight wheelbarrow is simple in structure, light, good in flexibility and capable of passing through a narrow cultivated land for transport.