The invention discloses a flexible strip-shaped cable and a radio frequency assembly. The flexible strip-shaped cable is provided with a strip-shaped cable insulator, wherein a cable inner conductor is buried in the cable insulator, the cable inner conductor is a strip-shaped component, the cable inner conductor is buried in the cable insulator along the length direction, a width surface of the cable insulator is provided with a cable outer conductor in an attached manner, and the cable outer conductor is wrapped by a cable protection sleeve. The cable is advantaged in that the cable is resistant to clamping, small in thickness and stable in signal transmission, and a damage failure phenomenon occurring in the process from outdoor to indoor is effectively avoided. The radio frequency assembly comprises the flexible strip-shaped cable and radio frequency connectors installed at two ends of the cable, and problems that pinching, damage and the like occur when radio frequency signals aretransmitted back to the indoor space from the outdoor space and pass through a window or a door frame are solved.