With the rapid development of the market economy, the competition between enterprises has become increasingly fierce, and the pressure on sales management personnel has become even greater. Most sales management personnel generally suffer from psychological disorders, which will have a negative impact on corporate performance. In response to this psychological problem, the study proposed a combination of positive psychological intervention and Morita therapy.

A total of 1600 experimental subjects were selected from the sales management of 100 small and medium-sized enterprises and divided into two groups based on the average number of people. The experimental group received positive psychological intervention combined with Morita therapy, while the control group received traditional psychological disorder treatment. The entire treatment period was 6 months. After completion, the Symptom Checklist SCL-90 was used to evaluate the symptoms of all personnel, and SPSS23.0 software was used to statistically analyze the results.

The statistical results show that the experimental group of students showed significant improvements in their ideological cognition, emotional control, and work attitude. The negative emotions of management personnel decreased by about 34%。

The research results indicate that positive psychological intervention combined with Morita therapy has a significant therapeutic effect on mood disorders in management personnel, which can improve their mental health level and work performance. It is recommended that enterprises strengthen positive psychological intervention and the application of Morita therapy in employee mental health management.