Abstract: A frame with a foldable structure includes a front wheel frame, a handlebar frame, and a foldable structure including a supporting pipe defined with a reference axis, a movable assembly, a first driving rod, and a second driving rod. The front wheel frame is for installing a front wheel and is pivotally connected to the handlebar frame. The movable assembly includes a first connecting member, a second connecting member, and a movable pipe fitting around the supporting pipe and being movable between a first position and a second position along the reference axis. An end of the first driving rod is pivotally connected to the supporting pipe. Another end of the first driving rod is pivotally connected to the front wheel frame. An end of the second driving rod is pivotally connected to the supporting pipe. Another end of the second driving rod is installed with a rear wheel.