The invention discloses an oral Chinese medicine preparation for treating gum swelling and pain. The preparation is characterized by comprising the following components in parts by weight: 10-20 parts of rhizoma drynariae, 10-20 parts of rhizoma anemarrhenae, 10-20 parts of radix salviae miltiorrhizae, 10-20 parts of radix astragali, 10-20 parts of pseudo-ginseng, 10-20 parts of radix angelicae, 10-20 parts of wild ginger, 10-20 parts of acacia catechu, 10-20 parts of honeysuckle, 10-20 parts of bletilla striata, 10-20 parts of radix scutellariae, 10-20 parts of rhubarb, 10-20 parts of borneol, 10-20 parts of mint and 10-20 parts of cordate houttuynia. Based on internal and external treatment and treatment of both origin and superficiality, the oral Chinese medicine preparation disclosed by the invention can be used for controlling gingivitis and remarkably modifying symptoms, such as hot ozostomia, vexation and fever, dried stool, dark urine and the like, thus internal heat can be removed from the upper part of the human body and dispelled externally, and also can be guided out by the stool and urine. The Chinese medicine preparation disclosed by the invention has excellent curative effects of fast relieving pain, clearing away heat and toxic material, removing swelling and relieving pain, removing necrotic tissues and promoting tissue regeneration, astringing to arrest bleeding and treating the gum swelling and pain.