An airtight algae cultivation device, algae cultivation wall and the algae cultivation house are disclosed, the airtight algae cultivation device including: a tank body, a plurality of bar-type light sources, and a multi-hole air outlet portion. The tank body has at least one air intake, an air outlet, and a water outfall, where the air intake is allocated at the bottom of the tank body, the air outlet is allocated at the top of the tank body, and the tank body stores the algae culture solution. The bar type light sources are set in a distance to each other. The multi-hole air outlet portion is allocated at the bottom of the tank body, which connected to the air intake and has a plurality of small holes to let the air from the air intake could be exhaust to the algae culture solution.一種密閉式微藻養殖裝置、微藻養殖牆與微藻養殖屋,密閉式微藻養殖裝置包含:一片狀槽體,具有一第一片狀面與一第二片狀面,該第一片狀面與該第二片狀面彼此背對,並具有至少一進氣口、一出氣口、一排水口,其中,該至少一進氣口設置於該第一片狀面之上方,該出氣口設置於該第二片狀面之上方,該片狀槽體內部用以儲存一藻類培養原液;複數個條形發光源,彼此以一間距設置於該片狀槽體中而平行於該第一片狀面與該第二片狀面;及一多孔型出氣部,配置於該片狀槽體內的底部,該多孔型出氣部具有複數個微小孔洞,該多孔型出氣部連接該至少一進氣口,使該至少一進氣口所進入的氣體可由該些微小孔洞排出而進入該藻類培養原液中,藉由該出氣口將該藻類培養原液中的微藻所進行的光合作用所產生的氧氣排出。1‧‧‧密閉式微藻養殖裝置11‧‧‧片狀槽體12‧‧‧槽體內部13‧‧‧出氣口14‧‧‧進氣口15‧‧‧排水口20‧‧‧條形發光源30‧‧‧氣體40‧‧‧藻類培養原液50‧‧‧多孔型管路51‧‧‧微小孔洞80‧‧‧氧氣
