Method for storing and inquiring data in IMS [IP (internet protocol) multimedia subsystem] network

The invention discloses a method for storing data in an IMS [IP (internet protocol) multimedia subsystem]. A primary ENUM-DNS (telephone number mapping-domain name system) server in an IMS network comprises an NS (name system) data storing module and a data A storage module which respectively store corresponding relations among storage domain names and names of secondary ENUM-DNS servers and corresponding relations among the names of the secondary ENUM-DNS servers and IPs, and the high-level storage domain names and secondary-level storage domain names which are stored in the NS data storage module are sequentially arranged from left to right. During inquiry, after being inverted by the primary ENUM-DNS server, a received inquiry domain name is sequentially matched with the storage domain names from left to right, so that the name of a target secondary ENUM-DNS server and the matched IP of the secondary ENUM-DNS server are obtained. The method for storing and inquiring the data has the advantages of simplicit