The invention provides a rotary three-motor device. The rotary three-motor device comprises a working electrode, a reference electrode, a counter electrode, a motor rack, a signal screw, a reference electrode screw, a counter electrode screw, a cell rotating rod, a height-fixing column, a direct-current motor, an electrode seat, an electrolytic cell assembly, a reference electrode fixing clamp anda counter electrode fixing clamp, wherein the signal screw, the reference electrode screw and the counter electrode screw are used for fixing the motor rack on a front panel of a case and penetrate through the motor rack; the cell rotating rod and the height-fixing column are fixed on the motor rack and separately extend along a direction which is perpendicular to the ground; the direct-current motor is fixed on the motor rack; the electrode seat is electrically connected with the direct-current motor; the electrolytic cell assembly moves along the cell rotating rod; the reference electrode fixing clamp is used for clamping the reference electrode and moves along the cell rotating rod; and the counter electrode fixing clamp is used for clamping the counter electrode and moves along the height-fixing column. According to a provided glassy carbon electrode production process, the conductivity to a glassy carbon electrode and anion and kation absorbing ability are improved by a carbon fiber bundle. Compared with a correlation technique, the rotary three-motor device and the glassy carbon electrode production process have the advantages that the structure is simple, assembling is facilitated, and the conductivity is good.