The invention discloses a method and device for precisely searching a mobile phone contact person. The method comprises the following steps of: S1, receiving a statement input by a user; S2, splitting the statement into multiple character sets in a manner of taking two characters as one set, and performing fuzzy matching of name information in an address book and the obtained character sets; S3, judging whether matching is successful or not, if so, executing the step S4, and otherwise, executing the step S5; S4, returning all successfully matched name information into the statement to perform statement matching, and displaying the statement successfully matched name information; S5, splitting the statement into multiple characters, and performing fuzzy matching of the name information in the address book and the obtained characters; and S6, displaying all the name information obtained by fuzzy matching. By means of the method and the device disclosed by the invention, due to a set judgement condition, a contact person in the mobile phone address book can be accurately analyzed through one sentence; and thus, the contact person information inquiry efficiency can be increased.