The invention provides a flying insect catching device, which comprises: a body, which has an open end and a catching chamber connected with the open end, the catching chamber is used for filling bait, the body is provided with a plurality of perforations connected with the catching chamber, so that the flying insect enters the catching chamber from perforations to suck bait; and an assembly, which is detachable and combined with the open end. In this way, the unique preferences of flying insects can be used to effectively capture different flying insects through simple assembly changes of the body and assembly parts.本創作提供一種飛行昆蟲捕捉裝置,其包含:一本體,其具有一開放端、及連通於開放端之一捕捉室,捕捉室用於填裝誘餌,本體設有連通捕捉室之複數穿孔,令飛行昆蟲由穿孔進入捕捉室吸食誘餌;以及一組裝件,其拆離式結合於開放端。藉此,利用飛行昆蟲獨特的喜好,經由本體與組裝件簡單組裝變化,即可達到有效捕捉不同飛行昆蟲之功效。