A micro insect suction-type collector is composed of a switch, an insect suction port, a baffle, a conveying pipe, a filtering net, a power source, a fan, a collection pipe and a collection bottle, and resolves the problems that an ordinary insect collector is interfered by the weather or damaged by animals easily, the time for catching insects is long, and other insects are mixed in easily. The conveying pipe is cylindrical, the insect suction port and the fan are respectively located at two ends of the conveying pipe, the insect suction port is funnel-shaped, the baffle and the filtering net are both located inside the conveying pipe, the power source and the collection pipe are connected with the upper surface and the lower surface of the conveying pipe respectively, the filtering net is located between the fan and the collection pipe, the baffle is located between the insect suction port and the collection pipe, the switch is located on the surface of the collection pipe, the collection bottle is connected with the tail end of the collection pipe, the upper end is movably connected with the top of an inner cavity of the conveying pipe, and the lower end of the baffle is a free end. The micro insect suction-type collector is simple in structure, convenient to use, low in cost, strong in practicability and easy to popularize.