1. A search server interconnection method for mobile search, comprising: sending an information list of a first group of member engines to a search server; receiving an information list of a second group of member engines, wherein the information list of the second group of member engines is returned by the search server, and the information list of the second group of member engines is obtained after the search server determines, according to the information list of the first group of member engines, member engines that are to exchange information; and sending meta-index information of member engines in the information list of the second group of member engines to the search server.