A computer-implemented address search method, the method comprising: acquiring address search request information, and determining to-be-found destination address information comprised in the address search request information, wherein the to-be-found destination address information is obtained in the following manner: determining at least one keyword comprised in the address search request information; for each determined keyword, executing the following steps finding, from preset text address dictionaries corresponding to different address types, a text address dictionary comprising the keyword; and replacing the keyword with a string used to denote an address type corresponding to the found text address dictionary; determining, by using a regular expression used to represent address information, whether a string group formed after said each determined keyword is replaced with a corresponding string represents address information; when determining that the string group represents address information, determining, according to the string group, a quasi address string corresponding to the to-be-found destination address information; and using the quasi address string as a conditional random field CRF feature, and extracting the to-be-found destination address information from the address search request information based on a CRF algorithm; splitting the destination address information into at least one piece of sub-address information, wherein the destination address information comprises multiple pieces of sub-address information, and the multiple pieces of sub-address information respectively correspond to different address types; matching the at least one piece of sub-address information or the at least one piece of sub-address information and the destination address information with different address information comprised in an address database to obtain a match degree, wherein each piece of address information stored in the address database comprises different sub-address information that forms the address information; and using address information that is obtained by the matching and whose match degree is greater than a set threshold as found destination address information for output. acquiring address search request information, and determining to-be-found destination address information comprised in the address search request information, wherein the to-be-found destination address information is obtained in the following manner: determining at least one keyword comprised in the address search request information; for each determined keyword, executing the following steps finding, from preset text address dictionaries corresponding to different address types, a text address dictionary comprising the keyword; and replacing the keyword with a string used to denote an address type corresponding to the found text address dictionary; determining, by using a regular expression used to represent address information, whether a string group formed after said each determined keyword is replaced with a corresponding string represents address information; when determining that the string group represents address information, determining, according to the string group, a quasi address string corresponding to the to-be-found destination address information; and using the quasi address string as a conditional random field CRF feature, and extracting the to-be-found destination address information from the address search request information based on a CRF algorithm; determining at least one keyword comprised in the address search request information; for each determined keyword, executing the following steps finding, from preset text address dictionaries corresponding to different address types, a text address dictionary comprising the keyword; and replacing the keyword with a string used to denote an address type corresponding to the found text address dictionary; determining, by using a regular expression used to represent address information, whether a string group formed after said each determined keyword is replaced with a corresponding string represents address information; when determining that the string group represents address information, determining, according to the string group, a quasi address string corresponding to the to-be-found destination address information; and using the quasi address string as a conditional random field CRF feature, and extracting the to-be-found destination address information from the address search request information based on a CRF algorithm; splitting the destination address information into at least one piece of sub-address information, wherein the destination address information comprises multiple pieces of sub-address information, and the multiple pieces of sub-address information respectively correspond to different address types; matching the at least one piece of sub-address information or the at least one piece of sub-address information and the destination address information with different address information comprised in an address database to obtain a match degree, wherein each piece of address information stored in the address database comprises different sub-address information that forms the address information; and using address information that is obtained by the matching and whose match degree is greater than a set threshold as found destination address information for output.