The invention relates to an integrated handheld identity information comparison machine and a comparison method. The comparison machine comprises a shell, wherein a checking module for checking identity information is arranged in the shell; a head portrait acquisition module is arranged at the upper end of the shell; a fingerprint acquisition module is arranged at the lower end of the shell; an indicator light module is arranged at a corner of the front surface near the upper part of the shell; an environment brightness detection module is arranged on one side of the shell; a display module is arranged between the fingerprint acquisition module and the head portrait acquisition module; a voice output module is arranged at a corner of the front surface near the lower part of the shell; the head portrait acquisition module comprises an infrared fill-in light; a main controller is connected with the head portrait acquisition module, the checking module, the fingerprint acquisition module, the environment brightness detection module, the indicator light module and the voice output module through corresponding ports. In the invention, the problem that an identity information comparison machine cannot realize comparison integrating a person and corresponding identity card is solved.