The average length of Chinese men’s genitals is about 6 to 8cm in the non-erect state and 11 to 13cm in the erect state. 1. The average length in non-erect state: according to China’s research statistics, the average length of the penis of adult men in China in the non-erect state is about 6 to 8cm. The length of the same person’s penis is not constant under normal circumstances, such as tension, cold or severe fatigue can make the length of the penis change. 2. The average length in erectile state: according to our research statistics, the average length of adult male penis in erectile state is about 11-13cm, which is 1-2cm different from the average, and all of them are regarded as normal phenomenon. To summarize, these measurements have a certain relationship with the selection of objects and measurement methods, and can only be used as a reference.