The invention provides a method and device for building address book item information. The method includes the steps of when it is monitored that a mobile client terminal receives short message data, identifying preset-format phone number information in the short message data; determining whether corresponding webpage class service inlet information exists in the phone number information or not; if the corresponding webpage class service inlet information exists in the phone number information, building an address book item in an address book application of the mobile client terminal for the phone number information, wherein the corresponding webpage class service inlet information is arranged in the address book item. By means of the method for building the address book item information, it can be guaranteed that a user can rapidly obtain a corresponding service through the inlet information in the address book item, the use rate of the webpage class service inlet information can be improved, and the user experiences can be improved.