Abstract: The running stabilizing linkage system of the invention, which is applicable to the joints of a 3-coach articulate car essentially consisting of a front coach, a rear coach and an intermediate coach which is comparatively short, comprises a link holder 2 disposed rotatably about a vertical axis in the center in plan view of the intermediate coach, a pair of connecting rods 4, 4 each connected to the link holder through a bearing 7, with the connecting rods being supported rotatably about vertical axes in positions radially equi-spaced from the center of the link holder, and a pair of link brackets 3, 3 each disposed in the transverse center of the end of the front or near coach which is closer to the intermediate coach, with the other end of each connecting rod being connected rotatably about a vertical axis to the corresponding link bracket 3 through a bearing 8. This linkage prevents jolt of the car, particularly pitching of the intermediate coach.