Personality is an individual’s attitude and habituated behavior toward himself, others and the real environment. Personality has the psychological characteristics of uniqueness and relative stability. A childhood character traits, often long-term impact on the entire psychological activities, and can even be said to be “lifelong difficult to change”. This is the inner meaning of “three years old”, “the mountains are easy to change, the nature is difficult to change”. Therefore, a sound character is often a sign of a healthy personality and good psychological condition; a physically and psychologically healthy person must be a person with a sound character. Personality is closely related to cancer, as shown in the statistical survey on psychosomatic medicine, cancer patients often have certain specific personality characteristics, which is what we often hear in our daily life as “cancer personality”. Cancerous personality means that people with this personality are more prone to cancer than other personalities. Which personalities are prone to cancer? People who are eccentric, dull and depressed, narrow-minded, sentimental, suspicious, pessimistic, cynical, irritable, and sulking are prone to cancer. On the contrary, those who are cheerful, open-minded, frank and open-minded, restful, optimistic, humorous and outgoing will rarely get cancer.