Depression is divided into the following categories, mainly in terms of qi stagnation: 1) liver qi stagnation type, usually treated with Chaihu Shuhelian; 2) liver stagnation and fire type, often used Danjuania Yiyao San plus reduction; 3) phlegm and qi interruption type, that is, qi stagnation and phlegm stagnation intersect to a piece, there is a foreign body blocking the throat that is often said to be plum kernel qi, treated with Hanxia Houpu Tang; 4) mind and spirit loss of nourishment type, patients often show The patient often cries and laughs unpredictably, and is treated with Ganmai Da Zao Tang; 5. The type of deficiency of both qi and blood, that is, the type of deficiency of both heart and spleen, is treated with Gui Spleen Tang; 6.