When I first entered the medical profession, I heard that the sages of the medical profession are called gods who look and know. However, after studying and practicing medicine for several years, I still did not understand the key points. Now in the year of Dinghai, I was able to read in detail the book of Wu Qian, a famous doctor of the Qing Dynasty, “The Golden Guide to the Four Diagnostic Techniques of Medicine”, which describes the essence of the four diagnostic techniques of looking, hearing, questioning and cutting, especially the five colors in the diagnosis of the five colors corresponding to the five elements of nature and the five organs of the human body are thoroughly discussed. The “Four Diagnostic Techniques” says: “The creation of the subtle, through the mysterious and obvious, there is no one who does not first look and get it.” However, the diagnosis of Chinese medicine is always combined with the five movements and six qi, so it is obvious that the color of the five organs of the human body is the main color, which shows the importance of color diagnosis. Tracing the origin of diagnosis, the concept of “color” was introduced as early as the “Nei Jing” period, such as the “Ling Shu” chapter said: “Twelve meridians, three hundred and sixty-five veins, the blood and gas are on the thus go to the empty orifices.” Su Wen – pulse to the essence of the theory of said: “The five colors of the essence of the five colors, gas also.” Which refers to the essence of qi and blood up the head and face, outside to the skin, so see the different colors of each person. Sixty-one difficulties” said: “look and know, called the gods …… However, look and know, look to see its five colors, to know its disease.” The “spiritual pivot・evil internal organs disease shape” chapter said: “the yellow emperor asked Qibo said: Yu heard, see its color, know its disease, the life said Ming; ……”. There are still scriptures say: “outside the knowledge of, said the holy; within the knowledge of, said God. This is also called.” The “one leaf to know the autumn” can be said to be a miracle. Chai Xiaoshu, Department of Oncology, Guangdong Chinese Medicine Hospital The five-color diagnosis is based on the law of the five elements of nature, and the five substances of wood, fire, earth, gold and water represent the five color attributes, which are used to illustrate the relationship between changes in disease. As the saying goes, nature and man are in harmony. The “Four Diagnostic Techniques of the Heart” says: “Five elements and five colors, green, red, yellow and white, black and green, like the ring of constant virtue.” Just like the four seasons of nature: birth, growth, transformation, collection, hiding, the five colors should be the five movements: green, red, yellow, white, black, the main principle of the five colors diagnosis, the five elements doctrine to explain the five organs with the five colors, the human body is the reflection of the five colors to identify the normal function of the five organs and abnormal pathology, to recognize and generalize the body all physiological phenomena and pathological changes, the human body and the external environment and other complex relationships. The four diagnostic methods of the heart said: “dirty color is the main, the time color is the guest, spring green summer red, autumn white winter black, long summer four seasons, the color yellow often then, the guest wins the main good, the main wins the guest evil.” Because of the different climate of the four seasons, the four seasons face color is different, spring gas through the liver, its color when green; summer gas through the heart, its color when red; autumn gas through the lungs, its color when white; winter gas through the kidneys, its color when black; long summer four seasons of gas through the spleen, the total color when yellow, this is the four seasons of the normal color. By following the five colors of green, red, yellow, white and black that appear on the patient’s face in all four seasons, we can detect the internal pathologies of the liver, heart, spleen, lungs and kidneys; and by using the relationship between the five elements and the corresponding five colors, we can understand the interrelationship between the pathologies of the internal organs. The five-color diagnosis is closely related to the five internal organs of the human body. The human being is born as the spirit of all things. People Bing five elements and the internal organs, so the five elements in the five colors, shown in the person, is the color of the five organs. The “pulse to the essence of the theory” said: “the five colors of the essence of the five colors, gas also. Because the color is the glory of the qi and blood, the face is the qi and blood, the qi and blood changes, the color that should be, the most important color, the five colors show in the face, so the clinical see “liver disease green color, heart disease red color, spleen disease yellow color, lung disease white color, kidney disease black color”. The “Four Diagnostic Techniques of the Heart” says: “Change of color is a great peace, the birth of the gram submissive. Green and red, red and yellow together, yellow light yellow, black and green deep blue, white and black light black; white and green light blue, red and white into red, green and yellow into green, black and red purple into, black and yellow sallow.” That is, the five organs of the five colors, green is the color of liver wood, red is the color of heart fire, yellow is the color of spleen earth, white is the color of lung gold, black is the color of kidney water, which are the normal color of the five elements, the right color for the right disease. If liver disease is seen in cyan color, if it is seen in black or red color, it is not corresponding to the color of the phase of birth, which is a good prognosis. If you see yellow or white, it is the color of the phase in the non-correspondence, which is inverse evidence, and the condition is evil. It is said that “there is a normal color, the complex change is not normal”, “the normal color …… heart red lung white liver green spleen yellow kidney black” is also, the complex change color, “cold is condensed weeping The color of the complex, “the cold is condensation, weeping is green and black, hot more Naoze, Naoze is yellow, red. Due to the deep and shallow, the quality of the five transport within the five organs, the deep disease by the meridians and manifest the true color; the six lewdness of the gas outside the offender qi and blood, the shallow disease with the veins and manifest the disease color. The “Four Diagnostic Techniques of the Heart” says: “Onyx is wrapped in yellow, and the spleen is in perfect condition. Onyx wrapped in red lung, onyx wrapped in vermilion heart. Onyx wrapped in black and red, purple and kidney edge. Onyx wrapped in blue and red, stone green belong to the liver.” Therefore, the five viscera reflected in the face of the color, must be gas color and to, such as white silk wrapped in yellow, yellow in red, is the spleen gas color and to; such as white silk wrapped in light red, is the lung gas color and to; such as white silk wrapped in vermilion, is the heart of the gas color and to; such as white silk wrapped in dull red, is the kidney gas color; such as white silk wrapped in blue red, this is the liver gas color and to. The five colors still have to identify the five organs of good and bad points, such as the “four diagnostic methods of the heart” said: “green as the pale wall, do not want as blue. Red and white wrapped in vermilion, [ochre gambling dead original. Black heavy lacquer soot, white feathers withered salt. Dimension S Luo wrapped, yellow earth is difficult at the end.” Really refers to the green color such as stone green color that is alive, such as indigo leaves that is dead; red fresh is alive, such as septicemia is dead; black such as heavy lacquer is alive, such as smoke and coal withered earth is dead; white luster such as goose feathers is alive, such as dry bones is dead; yellow in red is alive, yellow such as earth is dead. Therefore, the five colors should not only check the hue of green, red, yellow, white, black, especially to distinguish the color of the bright and obscure, Zeyao, floating and sinking, gathering and dispersing and color position on the upper and lower, internal and external differences: divided into bright and obscure to identify the weight, divided into Zeyao to see victory and defeat, divided into floating and sinking to know the depth, divided into gathering and dispersing to measure the distance; divided into upper and lower to know where the disease, divided into left and right to distinguish the qi and blood, divided into internal and external to identify the advance and retreat. The five colors are used to know the five organs, and the five colors are used to respond to the five elements, which can be used clinically to see its magic. However, it is still necessary to combine the diagnosis of smell, questioning and cutting in order to make a comprehensive and accurate judgment of the disease. Therefore, the “Four Diagnostic Techniques” says: “Bi with the eyes, smell with the ears, ask with the auspicious examination, cut with the finger reference, understand the diagnostic path, know the root cause of the disease, can be combined with the color pulse, can be all-round.” Su Wen. The theory of shifting the essence and changing the qi says: “The ancient times make tax dollars and loans season, the management of color and pulse and through the gods, combined with the gold, wood, water, fire, earth, the four seasons, eight winds, six, not deviating from its normal, change phase shift, in order to see its subtlety. To know the key, then the color pulse is carried forward.” Therefore, clinical diagnosis and treatment of disease, must be a combination of the four clinics to look, smell, ask questions, cut the material, according to the five elements of the attribution and its changes in the law of birth, multiplication and invasion, inferring the condition.