A detecting platform for holding a tiny insect includes a main body forming a containing space, which passes through the main body and is surrounded by side walls of the main body. A first side wall and a second side wall of the side walls are opposite to each other, and the area of the second side wall is smaller than that of the first side wall. The main body forms a first opening and a second opening passing through the first side wall and the second side wall respectively for the tiny insects entering and leaving the containing space. A bottom plate covers a first through surface of the containing space to form a bottom surface and a detecting area is configured thereon to holding the tiny insects. Accordingly, the tiny insects can stay on the detecting area so as to detect the characteristics of the tiny insects expediently.