Sales skill is the embodiment of sales ability and also a kind of work skill. Doing sales is a process of communication between people, with the purpose of moving with emotion, understanding with reason, benefiting with attraction. Including the control and application of customer psychology, product professional knowledge, social common sense, expression ability and communication ability. Common sales techniques include guided trading method, hypothetical trading method, key trading method, Franklin comparison method, door handle trading method and soft and hard introduction method. In short, sales is a process of communication between people, and its purpose is to move people with emotion, convince people with reason, and lure them to benefit. For salespeople, communication skills are the most important.