The invention provides a tubular spring coupler structure which comprises a driving shaft, a bevel gear, a gear, tubular springs, a support, a half coupler, a torque rod, a driven shaft, a lubrication hole and seal rings. The bevel gear is arranged on the surface of the driving shaft, and one side of the bevel gear is tightly connected with the support. One end of the support is tightly connected with the half coupler, and the torque rod is arranged on one side of the half coupler. The tubular springs are arranged on one side of the torque rod, and the gear is arranged on one side of each tubular spring. One end of the driving shaft is tightly connected with one end of the driven shaft, and the lubrication hole is formed in the joint of the driving shaft and the driven shaft. The seal rings are arranged at the joint of the driving shaft and the driven shaft. The structure is compact, so that the shafts are effectively connected, the tubular springs in the tubular spring coupler structure can effectively reduce vibration, and therefore the tubular spring coupler structure can have better linkage during work. Lubricant can be conveniently added through the lubrication hole, abrasion of the coupler is reduced, and the service life of the tubular spring coupler structure is prolonged.