The continuous rolling tension formula is the core of the theory and the application of continuous rolling system. A lot of studies have been made both in China and other countries. In 1960s, the author introduced continuous rolling differential formula, the dynamic tension formula for multi-stands and the stable state tension formula. All these formuls have been discussed in detail.The Japanese derived the tension formula in theory in 1970s and they did experimental demonstrations, among which the experimental results made by Motoho Asakawa is the most important. Herein, the tension formula is demonstrated by employing the data of the experimental results made by Motoho Asakawa and on-the-spot survey data of Baosteel 2050 heating continuous mill.