The invention provides a cart. The cart is used for conveying a gas bottle. The cart comprises a cart body, fixing supporting legs, a front wheel assembly and a lifting device, wherein the cart body is used for bearing the gas bottle, in the traveling direction, an exhaust port of the gas bottle faces the rear side of the cart body; the fixing supporting legs are arranged on the cart body and located on the rear side of the cart body, and the fixing supporting legs are used for supporting the cart body; the front wheel assembly is arranged on the cart body and located on the front side of thecart body; the lifting device is arranged on the cart body and located on the lower portion of the cart body, and the lifting device is used for jacking the front side of the cart body up so as to make the cart in the inclined state that the front side of the cart body higher than the rear side of the cart body to detect gas in the gas bottle. By means of the cart, the problems are effectively solved that by means of a cart in the prior art, detection of the gas in the gas bottle is tedious and complicated, and the labor intensity of workers is increased.