The present invention discloses a biological cultivation system and a planting device thereof, the planting device comprising a frame module, a plurality of guiding modules, at least one movable cultivation module and at least one fixed cultivation module. The frame module has an accommodating space, and the accommodating space is divided into a plurality of regions. The plurality of guiding modules are disposed on the frame module, wherein one guiding module corresponds to one of the regions, and the other guiding module corresponds to another region. At least one active cultivation module can be movably disposed in the corresponding guiding module and located in one of the areas, and at least one active cultivation module carries a plurality of living things. At least one fixed cultivation module can be movably disposed in the corresponding guiding module and located in another area, and at least one fixed cultivation module carries a plurality of living things. The at least one active cultivation module is displaced by the corresponding guiding module, so that at least one movable cultivation module and at least one fixed cultivation module are in a dislocated state, and at least one active cultivation module is operated by a descent. One of the regions is displaced to another region.本創作揭露了一種生物栽培系統及其植栽裝置，植栽裝置包括一框架模組、多個導引模組、至少一活動栽培模組及至少一固定栽培模組。框架模組具有一容置空間，容置空間區分為多個區域。多個導引模組設置於框架模組，其中一導引模組對應於其中一區域，另一導引模組對應於另一區域。至少一活動栽培模組能活動地設置於所對應的導引模組，並位於其中一區域中，至少一活動栽培模組承載多個生物。至少一固定栽培模組能活動地設置於所對應的導引模組，並位於另一區域中，至少一固定栽培模組承載多個生物。其中，至少一活動栽培模組通過所對應的導引模組進行位移，以使至少一活動栽培模組與至少一固定栽培模組處於錯位狀態，且至少一活動栽培模組通過一下降作動而由其中一區域位移至另一區域。
