Flat cable

The invention discloses a flat cable. The flat cable comprises a plurality of conductor cores and reinforcing cores which are arranged in a row in an equidistant way. The flat cable further comprises a sheath arranged on the outer sides of the conductor cores and the reinforcing cores in a wrapping way. The reinforcing cores are arranged on the two sides of the conductor cores in a symmetrical way. Each conductor core comprises a conductor, a conductor insulating layer and a reinforcing layer sequentially arranged on the outer part of the conductor in a wrapping way from the inside out. The flat cable with a proper design can bear high-strength and relatively strong mechanical stress. The flat cable can further bear cores which can be repeatedly bent. It can be guaranteed that the service lifetime of the flat cable can be more than 5 years.