The invention relates to a rocket engine jet pipe brazing strip automatic rolling point welding machine and a rolling point welding process. The automatic rolling point welding machine comprises a body base, a rotating workbench, a tensioning pattern, a gate type support, a brazing strip disc, a controller, an angle adjusting mechanism, a longitudinal rolling point welding operating mechanical arm, an annular rolling point welding operating mechanical arm and the like. By the automatic rolling point welding machine, mechanical, automatic and intelligent longitudinal brazing strip and annular brazing strip rolling point welding are achieved on jet pipe components, welding efficiency is high, welding quality is good, welding point distances are adjustable, rolling point welding speed can be reach 3 points / second, and welding speed can reach more than 5 meters / second. The automatic rolling point welding machine has no noise, arc, splash, radiation and the like during welding, and is high in reliability, simple to operate, easy to maintain, and suitable for welding of rocket engine spraying pipes with the diameters of 260-1500mm.