A kind of aquarium illumination device, including an ontology, at least an illuminating module and a control mould group. Ontology configures what aquarium. Illuminating module configures what ontology. It controls mould group and is electrically connected illuminating module, there is a storage element, storage element stores an illumination information. Wherein control mould group generates a control signal according to the illumination information of storage element, and transmits control signal to illuminating module, and illuminating module emits the illumination of a specific wavelength to aquarium according to control signal.一種水族箱照明裝置，包括一本體、至少一發光模組與一控制模組。本體配置於水族箱。發光模組配置於本體。控制模組電性連接發光模組，具有一儲存單元，儲存單元儲存一光照資訊。其中控制模組根據儲存單元的光照資訊來產生一控制訊號，並傳輸控制訊號給發光模組，而發光模組根據控制訊號來發射一特定波長的光照給水族箱。
