The invention discloses a damping buffer structure of a petroleum conveying pipe. The damping buffer structure of the petroleum conveying pipe comprises multiple oil conveying branch pipes connected in sequence, buffer fixing mechanisms for respectively fixing the multiple oil conveying branch pipes, and connecting buffer mechanisms arranged at connecting ends of the multiple oil conveying branchpipes, wherein extension drape connecting ends are arranged at the connecting ends of the multiple oil conveying branch pipes; the multiple oil conveying branch pipes are provided with grooves matchedwith the buffer fixing mechanisms; the buffer fixing mechanisms comprise bases fixed on the ground, and fixing support structures arranged on the bases; the bases are provided with first support frames and second support frames for fixing the oil conveying branch pipes; and the fixing support structures comprise arc fixing frames matched with the grooves. The damping buffer structure of the petroleum conveying pipe has the following beneficial effects: an excellent damping buffer effect can be provided to petroleum conveying pipes in seismic zones, so that powerful guarantee is provided for normal petroleum conveying.