Abstract:As the critical resource of the digital production line，tools are the principal factor affecting the production efficiency，machining cost and product quality.The traditional tool management mode covers the inventory，borrowing and lending of physical tools，but ignores the process design，tool preparation and other tool circulation links，therefore it is difficult to satisfy the intelligent and information requirements of the digital production line.To meet the requirements of the tool management，a reasonable and effective tool coding scheme is developed，a tool database including the tool item，tool assembly，cutting parameters and tool inventory is established，and a tool management system is also developed，which can provide support for the process design，physical tool management and cutting parameter accumulation.The research outcome is of great significance to improve the tool information management and promote the development of the digital production line.