Driving control circuit and system

The utility model discloses a travelling crane control circuit and system, which is provided with a handle control unit, a cab control unit, a switching unit and a travelling crane device, when the travelling crane device needs to be controlled through the handle control unit, the switching unit is switched to the handle control unit to be conducted, so that the handle control unit is conducted with the travelling crane device; and similarly, when the driving device needs to be controlled through the cab control unit, the switching unit is switched to be conducted through the cab control unit, so that the cab control unit is conducted with the driving device, and the driving device is controlled by the cab control unit. When the handle control unit is used, only one person can hold the handle device by hand, check the driving device and control the driving device through the handle control unit at the same time, and the effects that the control method can be switched, and high-efficiency control is achieved a