Disclosed is a wagon having improved convenience of use, wherein the wagon includes a main frame, a seat frame, a canopy frame, and a wheel assembly, wherein a foldable structure of each frame is conveniently manufactured such that the wagon can be unfolded and folded within a short time when the wagon in a stored state is installed, whereby portability and mobility of the wagon are improved, wherein the overall frame is easily folded and unfolded, whereby it is possible to conveniently use the wagon, wherein attachment and detachment of the canopy and the driving wheels are easy, whereby carrying and storage of the wagon are easy, and wherein the wagon is easily folded and unfolded without separation of the seat frame and the canopy, whereby it is possible for everyone to easily install and store the wagon.