Abstract: The Chunyu clan was a prominent family in the Qilu region (current Shandong Province in China), but there are few records in the historical books related to Dynasties of Sui and Tang. Some records of the clan in Volume Three of The Yuanhe Surname Compilation are not found. Worsely, the records of the Chunyu clan’s family members and genealogy during the Sui and Tang Dynasties are extremely incomplete. Through existing epitaphs, relevant content can be supplemented as follows. Firstly, Chunyu Nan’s father Chunyu Lang, initially moved to Jiangnan and later to Sichuan. Secondly, "in addition to the Jibei Chunyu clan, the Beihai Chunyu clan also played an important role in Henan" is also added. Through supplementation, it can be found that the Chunyu clan had both local power and the status of former court officials in the Sui Dynasty. Therefore, the clan suffers from their gradual decline and setbacks after entering the Tang Dynasty which follows immediately the Sui Dynasty.