Abstract: The present invention relates to the stock and securities technology analysis field and discloses a mathematical model of holographic natural K-line and its graph technology index. It takes the closing price of yesterday as comparison reference, and is relatively stable and well connected, which is a scientific stock price changing expression that follows the order of nature, traditional culture and thinking habit. It scientifically defines the yin and yang nature of K-line relative to the closing price of yesterday, correctly reflects the gaming process and power change of buyer and seller. It solves the problem of illegibility, loose, and misguidance of the traditional K-line with opening price as reference, expands the definition and theory of the traditional K-line, and is easy to learn and operate with more abundant information concise graph and more dynamic sense.