Seat controlling mechanism

A seat controlling mechanism includes motors (4, 5) for actuating a plurality of seat sections, a position detecting apparatus (2) detecting positions of the seat sections and a controlling apparatus (3) controlling the seat sections to move to a predetermined position, wherein an interfering range (X), an interference avoidable range (P, Q, R, S) in which an interference avoidance control is executed and a normal operation range (O) are set in the controlling apparatus (3), and when at least one of the seat sections positions in the interference avoidable range (P, Q, R, S), the controlling apparatus (3) prohibits the movement of the at least one of the seat sections toward the interfering range (X).