Prism accurate positioning device for verifying total station

The invention relates to the technical field of total station metrological verification, in particular to a prism accurate positioning device for verifying a total station, the device comprises a support component, a power component, a bearing component and a prism mounting component, the power component comprises a rotating motor and a motor connecting rod, one end of the motor connecting rod isfixedly connected with an output shaft of the rotating motor, and the other end of the motor connecting rod is connected with the bearing component, the prism mounting component is arranged on the bearing component, and the bearing component is configured to be in a free state in the rotating direction of the rotating motor when the prism needs to be positioned; the control method comprises the steps that when the prism needs to be positioned, the rotating motor is adjusted to enable the bearing component to be in a free state in the rotating direction of the rotating motor, and when the bearing component is in a stat