Multi-polar tube trolley line using polymer PVC casing, a plurality of power embedded copper conductors as the transmission bus, mobile and flexible multi-pole configuration brush collector, its compact design, stable performance, security, it is widely applied current is small, the use of higher frequency automated production line and testing lines. Second, the product features a simple structure, easy installation, low maintenance costs; 2, bending, can be used in radian occasions, flexible (bending radius> 1.5m); 3, with copper as the transmission conductors, can about 15% to 20% energy saving, cost-effective, greatly reducing the cost; 4, with polyvinyl chloride polymer shell, with excellent corrosion resistance and weather resistance, improve the quality of the trolley line, extending the slide touch the life line.