[Aim] To clarify the species, classification status, distribution and potential invasion harmfulness of the live mealybug in the epidermis of rambutan fruit imported from Thailand at Beijing port.[Method] Morphological characteristics and DNA barcoding were used to compare and identify the intercepted sample.[Result] The mealybug Maconellicoccus multipori (Takahashi, 1951), belongs to the Hemiptera, Pseudococcidae and Maconellicoccus. The COI sequence of the mealybug with the serial number KY372754 (M. multipori) in GenBank was 99% consistent. The morphological characteristics of Maconellicoccus multipori were introduced. The intercept situation of Maconellicoccus in China was reviewed. And also the quarantine importance of the pest was discussed.[Conclusion] The pest should be paid high attention by customs departments. Strengthening quarantine measures against to the pest is needed.