A cart capable of being combined to a bicycle comprises a cart body having a frame portion at least one front wheel arranged below the frame portion for driving the cart body the at least one front wheel being at a front portion thereof and wherein the cart has a combination structure for combining the cart to a bicycle so that the cart is able to be driven by the bicycle. Furthermore, the cart further comprises a steering structure for controlling moving directions of the cart so that when the cart is connected to a bicycle, the steering structure can control the moving direction of the cart. The frame portion has a bottom plate put thereon for carrying object thereon. The frame portion includes a back frame and the combining structure is installed at a handle linkage of the cart body.