The invention relates to an aluminum strip feeding device capable of improving aluminum strip conveying speed and accuracy. The device comprises a base; a horizontal cylinder is arranged above the base; a longitudinal cylinder is arranged above the horizontal cylinder and is connected with the horizontal cylinder; a movable rod of the longitudinal cylinder is connected with a movable seat; a clamp cylinder is arranged above the movable seat, and is connected with a fixed clamp plate; a movable rod of the clamp cylinder is provided with at least one movable clamp plate; a movable clamp plate positioned on the end part is fixed with the movable rod of the clamp cylinder, and the rest movable clamp plates are movably arranged; the movable rod of the clamp cylinder between adjacent movable clamp plates and between the fixed clamp plate and the movable clamp plate is provided with return springs respectively; a support plate is arranged above the movable rod of the clamp cylinder; and one end of the support plate is connected with the fixed clamp plate, while the other end movably passes through the movable clamp plates. The aluminum strip feeding device is suitable for an aluminum strip bending device, and can convey aluminum strips to a bending machine head of the aluminum strip bending device.