The invention discloses a folding and pushable type portable bicycle. A bicycle body comprises a front head
pipe, an upper beam, a lower folding rod, a back vertical beam, a five-way
pipe, a back oblique beam, a back fork, an auxiliary shaft seat and a lower seat
pipe. The lower folding rod further comprises a front piece, a back piece, a front rod, a back rod and a folder. The front head pipe is connected with the upper beam and the front piece of the lower folding rod in a
welding mode. The front rod is connected with the front piece and the folder, the back rod is connected with the folder and the back piece, the five-way pipe is connected with the back vertical beam and the back oblique beam in a
welding mode, and the back oblique beam is connected with the back fork, the back piece and the auxiliary shaft seat in a
welding mode. The lower seat pipe is formed by a base blade, a circular pipe and a pipe clamp in a connected mode. The upper beam, the back oblique beam and the lower seat pipe are rotatably connected. A
saddle is installed in the lower seat pipe, the front fork is connected with the front head pipe, a folding
handle vertical pipe is connected with the front fork, a
handle is connected with the folding
handle vertical pipe, a front wheel is installed on the front fork, and a back wheel is installed on the back fork. A drive mechanism comprises a middle shaft, an auxiliary shaft, a
crank, pedals, a preceding stage chain wheel, a preceding stage small chain wheel, a
flywheel, a back stage small chain wheel, a preceding stage chain and a back stage chain.