The invention provides a rotary reaming shoe guiding and a pipe string, and belongs to the field of oil field well cementation and completion tool. The device comprises a shoe guiding unit, and the shoe guiding unit comprises an upper joint, a shell and a lower joint, wherein the upper joint, the shell and the lower joint are connected sequentially, and a power mechanism is installed in an inner cavity which communicates with the upper joint, the shell and the lower joint. The lower end of the power mechanism is connected with the upper end of a transmission joint, and the lower end of the transmission joint is connected with the upper end of the reaming shoe guiding after extending out of the lower end face of the lower joint. The power mechanism comprises a transmission shaft upper cover, a radial bearing, a turbine stator-rotor group and a transmission shaft. The outer ring of the radial bearing and a stator group in the turbine stator-rotor group are tightly connected with the shell; the upper end of the transmission shaft is connected with the transmission shaft upper cover, and the lower end face of the transmission shaft upper cover abuts against the upper end face of the inner ring of the radial bearing. The inner ring of the radial bearing and a rotor group in the turbine stator-rotor group are installed on the outer surface of the transmission shaft in a sleeving mode, and the lower end of the transmission shaft is connected with the upper end of the transmission joint.