Magong has a wild sea area of internal bays, and has few pollution sources. Therefore, there is a big amount of cultivation industry there. According to the statistics information in Penghu, it says the number of families doing cultivation in Magong area is as big as over a half of the total number of fishery families. The cultivation industry include box net cultivation shed, oyster cultivation, Holiotis sieboldii cultivation and fish farm cultivation etc. Box net cultivation mainly distributes among the areas of Tiehhsien, Wute, Shihli, and Tsaiyuan etc. The cultivated fish are high-class fish such Pagrus major, Rhabdosargus sarba, Cobia etc. Oyster cultivation concentrates in Tsaiyuan and Wute etc. The biggest scale of Holiotis sieboldii cultivation is Shihshan Holiotis sieboldii farm in Chingan. Fish farm cultivation distributes among the places of Hsiwei, Chungkuang, Anchai, Tsaiyuan and Tiehhsien etc, and the fish are groupers, Lethrinus nebulosus and Rhabdosargus sarba. etc. Nowadays, there are companies who made box net cultivation transformed to recreation fishery joining the list of ecology tourism.