Scientists in China cooperated with American partners built a system which is called "China and the United States cooperating million volume digital library plan" (CADAL for short). Till now, it has already contained 1000 thousands volumes, total storage of CADAL is 150 TBytes. This paper presents a system to support massive digital resource management for CADAL. The system includes a series of softwares such as duplication elimination of Ebook,metadata to database,database designing and backup of Ebook, the R & D results have already been applied to the CADAL project. By means of the system,CADAL not only achieves Accurate management and fast recovery of massive data, but also supports webpublishing system and knowledgebased services effectively.