The invention relates to a large-scale
contact list, which belongs to the technical field of contact lists. The respective contact information of clients is uploaded, all the provided information is stored in one or more servers, and the provided information can be downloaded by direct Web search or according to need and then searched locally when a
client needs to be contacted. For the contacted party, the information of the other party is directly displayed on a
communication device in the process of communication, so the
telephone number does not need to be manually entered. Users only need to change respective information on the servers via
client ends. In the large-scale
contact list, exchanging contact information between people is changed into uploading or publishing respective contact information, and the contact information of all users can be completely or partially searched or published according to the permission of related rules or legal provisions. The large-scale
contact list can be conveniently used by people, moreover, the inconvenience caused by the loss of contact lists can be prevented, the optimal contact methods of people in work can be enriched, people can better contact one another, and the living standard of people can be increased.