The utility model relates to a power-and-free chain and friction line jointly used conveying line. The conveying line comprises a power-and-free chain line body, the power-and-free chain line body comprises a power-and-free chain bearing rail and a power-and-free chain traction rail, a friction line body is embedded in the middle of the power-and-free chain line body and comprises a friction line track and an intermediate friction drive device which is fixed on the friction line track, the friction line track is embedded in the middle of the power-and-free chain bearing rail in a common rail mode, the power-and-free chain traction rail is broken above the friction line track, a traction chain leading out device is arranged at the broken position of the power-and-free chain traction rail, a head friction drive device is fixed on the power-and-free chain bearing rail on the upstream portion of the friction line track, and a tail friction drive device is fixed at the downstream position of the friction line track. According to the power-and-free chain and friction line jointly used conveying line, the friction line body is embedded in the power-and-free chain line body to form one conveying line body so that conveying requirements of different process height and different station length can be met, and the conveying line is simple in structure and low in cost.