Current collection device and electric power transmission system

The topic of the invention provides a current collection device and an electric power transmission system. The collection device and the system have the advantages that position deflection of a current collector relative to a power supply circuit, and poor contact of the current collector relative to the power supply circuit do not take place easily. The current collection device (1) provided by the invention comprises current collection arms (61, 62), a movable component (5) and a displacement mechanism (9), wherein one end of an arm (65) of the current collection arms (61, 62) is used to hold a current collector (63), and the end part opposite to the current collector (63) side is held by the movable component (5); the movable component (5) can be connected to a connection component disposed on movable equipment (30) via the displacement mechanism (9); the displacement mechanism (9) can make the movable component (5) move relative to the connection component; and the displacement mechanism (9) can limit the