The invention relates to a riser pipe for counter-gravity casting of high-temperature alloys. The riser pipe consists of a high-temperature-resistant metal pipe, a metal disc, an inner ceramic lining,an outer ceramic lining, an inner coating and an outer coating, wherein the inner wall and the outer wall of the high-temperature-resistant metal pipe are provided with convex structures, the metal pipe is made of heat-resistant steel, and the convex structures of the inner wall and the outer wall of the metal pipe can improve the bonding force between the metal pipe and the ceramic linings. Eachof the inner ceramic lining and the outer ceramic lining is prepared from 30-40 wt% of refractory powder, 50-60 wt% of refractory aggregate and 5-10 wt% of refractory fiber, is 15-25 mm thick, and has a linear expansion coefficient close to that of the metal pipe. Each of the inner coating and the outer coating is formed by applying coating prepared from 75-90 wt% of high-purity yttrium oxide powder, 8-23 wt% of zirconium acetate, 0.5-1 wt% of fatty alcohol polyoxyethylene ether, 0.3-1.2 wt% of n-caprylic alcohol, and is 0.2-0.5 mm thick. The riser pipe has the advantages of high-temperatureresistance, no reaction with alloy liquid, good thermal stability and the like, is suitable for vacuum counter-gravity casting of the high-temperature alloys, and is also suitable for counter-gravitycasting of metal materials such as cast steel and cast iron.