A method of searching for and downloading a mobile telephone file is disclosed, and in the method, a server in a domain where a mobile terminal is located receives a keyword in a searching request, searches for resources in the mobile communication network, and returns a list of resources searched out to the mobile terminal; the mobile terminal receives data resource information selected by a user according to the list of the resources the mobile terminal sends a request for downloading resources to the server in the domain, and the server sends the resources to the mobile terminal. An apparatus of searching for and downloading a mobile telephone file is provided also, which includes a storage module, a receiving module, a sending module, a query module, and can also include a data base, a communication interface and a statistic module. A system of searching for and downloading a mobile telephone file is provided.