Obstruction is a common problem of major salivary glands, and most common cause is salivary calculi. The most frequent locations of sialolithiasis are submandibular gland and its duct. Wharton’s duct stones are frequently single, and multiplicity is uncommon. Additionally, radiologic imaging has an important role in the diagnosis and management of sialolithiasis. In this study, we presented a 40-year-old man who developed pain and swelling in right submandibular region, that CT scan showed six stones in right Wharton's duct.