The present invention provides an insect trap. The insect trap comprises a housing including an inlet opening and a outlet opening； a fan device disposed within the housing, for generating an air flow passing through the housing to draw in insects from the inlet opening； a collecting device attached to the outlet opening of the housing, so as to collect the insects being drawn into the housing； and an attractant holder and a light emitting device for attracting insects, wherein the attractant holder is disposed in the vicinity of the inlet opening so as to emit volatiles of attractant in the upstream of the inlet opening along an flowing direction of the air flow and toward outside of the housing. The insect trap provided by the present invention is compact and simple in structure, and can trap the insects effectively.
