Psychotherapy for mild depression can be done by supportive psychotherapy, cognitive therapy, behavioral therapy, interpersonal therapy, family therapy and so on. Generally speaking, supportive psychotherapy is applicable to all depressed patients, which mainly focuses on listening, comforting, encouraging, explaining and guiding to help depressed patients recognize and treat their depressive symptoms and actively cooperate with treatment. The cognitive-behavioral treatment approach, on the other hand, focuses on helping patients correct cognitive biases to reduce the symptoms of depression and reduce depression relapse by improving behavioral-motor patterns. Psychodynamic treatment is useful for comparing certain subtypes of depressed patients, mainly to improve the patient’s symptoms by recognizing the repressed and defensive content of the patient’s early growth. Interpersonal psychotherapy deals mainly with correcting the patient’s interpersonal problems and improving social adjustment. Family therapy focuses on adjusting emotional changes by shifting the communication patterns of parents, children, triangles, and relatives’ relationships. The above treatment methods have different options depending on the patient’s situation and specific problems.