The invention relates to a plant tissue culture container venting device, which is mainly installed in a culture container forming at least one venting hole, the venting device comprises a venting member, an adhesive member and a reflecting member, the adhesive member is disposed on one side of the venting member, and the reflecting member is disposed on the side of the venting member On the other side, the side of the gas permeable member is not shielded, so that the venting hole and the side of the gas permeable member and the unshielded side of the gas permeable member serve as a venting direction, thereby allowing the plant in the culture container to pass through the venting member provided on the outer wall surface of the culture container. Gas exchange is performed while the reflector is exposed to external light and reflects the light to an adjacent culture vessel, thereby allowing the plants in the culture vessel to perform photosynthesis to achieve sufficient and uniform illumination.本創作一種植物組織培養容器透氣裝置,主要安裝於一形成至少一透氣孔之培養容器,透氣裝置包括有透氣件、黏著件及反光件,黏著件設置於透氣件一側面,反光件則設置於其另一側面,透氣件側邊未遮蔽,因此透氣孔會與透氣件以及透氣件未遮蔽之側邊作為通氣方向,藉此透過設置在培養容器外壁面的透氣件可讓培養容器內的植物進行氣體交換,同時反光件受到外部光照射並將光反射至鄰近的培養容器,進而讓其培養容器內的植物進行光合作用,以達到足夠且均勻著光照。