A control method of a display unit in a medical system, the control method including: acquiring an environmental image of the display unit; acquiring, according to the environmental image, feature information of at least one user therein; and determining a specific user of the at least one user according to the feature information so as to generate a control signal, the control signal being used to drive the display unit to rotate such that the specific user watches the display unit easily. The present invention also provides a control apparatus of a display unit in a medical system to implement the method.