Linear guide way with lubricating structure

The utility model discloses a linear guide way with a lubricating structure. The linear guide way comprises a rail bar which extends in a direction to form a strip-shaped structure, a sliding block sleeving the rail bar, and two end covers arranged on two end faces in the axial direction of the sliding block, respectively, wherein the extension direction of the rail bar is defined as the axial direction; each end cover is provided with a plurality of backflow ways, an oil injection hole, an oil transmission way, an oil collection zone and a plurality of oil injection ways; the multiple backflow ways are arranged on two sides of the end covers; the oil collection zones are located between the backflow ways; the oil injection holes are formed in the side faces of the end covers; two ends of the oil transmission ways are connected to the oil injection holes and the oil collection zones, respectively; two ends of the two oil injection ways are connected to the oil collection zones and the backflow ways, respectiv