A flying insect trapping apparatus is provided that is capable of attracting and trapping flying insects such as flies or wasps very well and moreover without giving a user an unpleasant feeling. The flying insect trapping apparatus comprises an attractive and inductive member having a vertical surface portion, an entry port surrounding an upper part of the attractive and inductive member and a trap chamber communicating with the entry port, whereby a flying insect is attracted by the member and to land on the surface portion thereof and then is induced to move along the surface portion and to pass through said entry port so as to be trapped in the inside of the trap chamber.