[Aim] The raspberry phytophthora root rot (RPRR), caused by the pathogen Phytophthora rubi, is the most important disease affecting raspberry plantations worldwide. It is also listed as a quarantine pest in China. With the increasing planting area of raspberry in China, invasion and the incidence risk of RPRR increases. [Method] Following the pest risk assessment protocol, qualitative and quantitative analyses of the invasion risk of P. rubi were conducted, a comprehensive risk value (R) was calculated, and the risk level was determined. [Result] P. rubi is a considerable potential threat to raspberry plantations in China, with a risk value of 2.22. [Conclusion] P. rubi is considered a high-risk pathogen; quarantine departments at ports receiving imported seedlings should thus pay particular attention to it to prevent its introduction to China.