The invention discloses vehicular mobile communication equipment and a method for realizing number searching. The method includes: using a vehicular hands-free device to transmit key identifier information for number searching to a mobile communication terminal; and enabling the mobile communication terminal to search numbers matched with the key identifier information in the range of a phone book and/or call records according to the key identifier information as search results and transmit the search results to the vehicular hands-free device. The equipment and the method have the advantages that transmission of the key identifier information from Carkit to a mobile phone is realized, search requirements of the Carkit side is completed by means of data processing capability of the mobile phone, number searching is convenient for the user by the aid of the vehicular hands-free device, and the user can search matched numbers by means of key input of the Carkit, so that practicality of the vehicular hands-free device is enhanced.