The invention relates to a folding electric bicycle which comprises a front wheel, a rear wheel, a battery, a front fork, handlebars, a saddle frame, a saddle and a bicycle frame. The folding electric bicycle is characterized in that the bicycle frame comprises two side board frames which are opposite to each other face to face and are symmetrically arranged, and a containing groove is formed between the two side board frames; the battery is installed in the containing groove between the two side board frames; the rear wheel is installed at the rear portion of the bicycle frame and located between the two side board frames; the front fork is installed at the front portion of the bicycle frame through a first rotary shaft and located between the two side board frames, and the front fork is provided with a front fork limiting mechanism used for fixing the position of the front fork; and the lower end of the saddle frame is installed on the bicycle frame through a second rotary shaft and located between the two side board frames, and the saddle frame is provided with a saddle frame limiting mechanism used for fixing the saddle frame. The folding electric bicycle is fashionable and simple in appearance and convenient and quick to fold and collect.