A culture container includes a container and a cover. The container forms an opening at the top and an external threaded portion around the opening. The cover includes a main body and a flange extending from the main body. An internal threaded portion corresponding to the external threaded portion is formed on the internal surface of the flange. The cover forms a ventilation passage having an opening formed at a free end of the flange facing away from the main body. When the internal threaded portion is threaded with the external threaded portion so as to close the opening of the bottle, the interior of the bottle communicates with exterior via the ventilation passage. Thus, dust is prevented from falling into the bottle via the ventilation passage.一種培養器皿結構，係包括一瓶體，該瓶體為一透明之瓶體，該瓶體內形成有一容置空間，且該瓶體外周頂端處環設一外螺紋段；及一蓋體，該蓋體為一透明之蓋體，該蓋體螺設該瓶體頂部，該蓋體內周環設有與該外螺紋段相對應之一內螺紋段，且該蓋體凸設至少一凸部，該凸部底緣開設有一透氣道，藉此，當該蓋體之內螺紋段螺合於該瓶體之該外螺紋段時，該透氣道恰與該容置空間相連通，且可避免空氣之塵埃進入容置空間，達到防止污染容置空間內之空氣之功效。
