From the advanced foreign banks experience, we can find that the main or even the only means of maket risk management is to set up the risk limit system,which has limitation monitoring and limited processing. Limit system plays a risk early warning function and risk real-time monitoring function. The starting point of this book is not to innovate management techs that even western advanced banks cannot grasp. Instead, it wants to base on the commen sense of market risk management technology, integrating existing market risk management techniques and practical experience, combining our country commercial bank risk management practice, and shows a clear market risk management system and technical framework, hoping to be a specific guidance to the market risk managers and bank employees, and also provide substantial guidance for our country commercial bank market risk management.