In the legends of Tang Dynasty, the chivalrous novels that express the image of knights and chivalrous spirit represent the formal formation of Chinese martial arts novels. The most successful works of chivalrous novels in the Tang Dynasty are “Biography of the Qiu Ranke” and “Nie Yinniang”. This article compares and analyzes the two female chivalrous image of Hong Fu Nu and Nie Yin Niang, and examines their similarities and differences in the four aspects of identity background, marriage and love, characteristic advantages, and chivalrous spirit. Through analysis, we can find that: First of all, there is a huge difference in the identity backgrounds of Hong Fu Nu and Nie Yin Niang. However, no matter what the origin of the knight, the most attractive is the Chivalrous courage and spirit. Second, both Hong Fu Nu and Nie Yin Niang broke through barriers and constraints, bravely pursued marriage independence. However, “Biography of the Qiu Ranke” is more advanced than “Nie Yinniang”. Hong Fu Nu and Li Jing is a model of ideal love in people's minds. “Nie Yinniang” lacks emotional description. Nie Yin Niang chose her husband because of the mirror is very helpful. Third, Hong Fu Nu and Nie Yin Niang have their own advantages and specialties. This is Hong Fu Nu's beauty and Nie Yin Niang's superb martial arts. and the two items have also become the basic elements in shaping the female chivalrous image in later martial arts novels. Finally, the types of knights include not only Confucian knights who serve the country and make contributions, but also Taoist knights who don't care about fame and fortune and go back to seclusion. Hong Fu Nu and Nie Yin Niang are typical representatives of these two knights.