The present disclosure provides a traffic scheme control method and device. The method includes: obtaining green light waste time of each lane in each flow direction at a traffic intersection during a green light time period; obtaining a class saturation of each lane, and obtaining a class saturation of each flow direction according to the class saturation of each lane; obtaining a class saturation of a current control scheme based on the class saturation of each group of flow directions in the current control scheme; determining a class saturation of each candidate control scheme; and determining a target control scheme having a minimum class saturation, and when the class saturation of the current control scheme is greater than the minimum class saturation, controlling a signal controller to control a next traffic cycle at the traffic intersection according to the target control scheme.