A motor control support for a fishing boat employed in conjunction with a fisherman's chair (10) which is mounted on a first end of a vertically positioned pedestal (12) and with the second end of the pedestal being secured rotatably in a receiving pedestal support (24) securely mounted on the deck. The motor control support includes a sleeve (14) which fits around the pedestal (12) and which is connected to a first end of an elongated arm (28) in such a manner that the arm (28) is pivotal in a vertical direction. The other end of the arm (28) is secured to a receiving structure (30) formed on the underside of a platform (34) which supports the motor control assembly (35). The arm (28) can be secured in any desired position so it can have any desired effective length from the chair pedestal (12) to the motor control supporting platform (34). The platform (34) has casters (36 and 38), secured on the underside surface thereof, which ride upon the deck (22) in an arcuate path. Because the arm (28) is connected in a manner to be vertically pivotal with respect to the sleeve (14) the platform (34) can ride up and down along its arcuate path upon an uneven deck surface (22).