1. An apparatus for generating a facial composite image, comprising: a database to store face image and partial feature image information; a wireframe applicator configured to apply a face wireframe to a basic face sketch image based on applying an active weight to each intersecting point of the face wireframe; a face composer configured to form a two-dimensional face model to which the face wireframe is applied, by repeated performing crossover operations and mutation operations using a face selected from the database as parent genes to approach a target face; and a model transformer configured to transform the two-dimensional face model to which the wireframe is applied according to a user input.