The invention relates to an intelligent pantograph device for trolley bus and a using method thereof, which relate to the field of intelligent control of pantograph of a trolley bus and solve the problem that the conventional trolley bus can only realize overtaking on a single side and the problem that the automatic connection cannot be realized between the pantograph and a contact wire in an overtaking process. In the invention, when the pantograph is lifted, a contact wire tracing program based on the processing of image captured by an infrared camera on a pantograph assembly is adopted to regulate the angle of the pantograph, a movable cable clamp is used to compensate for an error, and thus, the pantograph is connected to the contact wire automatically; during overtaking, a rear vehicle informs a front vehicle of lowering the pantograph through a communication unit and determines if to allow the pantograph of the front vehicle to return, the contact wire tracking program is used to lower the pantograph of the front vehicle if the pantograph of the front vehicle does not return, and the head of the pantograph is allowed to return to the edge above the vehicle body; and when the pantograph is lowered, the pantograph can fall and return automatically. The device can realize the automation of the power connection and disconnection of the trolley bus and the automation of overtaking, and greatly improve the operation efficiency and flexibility of the trolley bus. Thus, the device has certain practical value.