The structure of an environmental protection aquarium is an accommodating space in an aquarium, which is used to set a pumping motor and a filtering unit. The power of the pumping motor is mainly provided by a solar panel receiving electricity converted from sunlight. After the electric energy generated by the board is transmitted to an electricity storage unit, the direct current is converted into alternating current through a conversion module and stored. In this way, the power required to make the motor run is obtained by solar energy conversion, which achieves energy saving and environmental protection, and avoids accidental power outages.一種環保水族箱之組成結構，係一水族箱內設容置空間，用以設置抽水馬達及過濾單元，主要係令該抽水馬達的動力由一太陽能板接收陽光轉化而成之電能提供，該太陽能板產生的電能係傳送至一蓄電單元後，經由轉換模組將直流電轉換為交流電並儲存。藉此，令該馬達運轉所需之電源利用太陽能轉換取得，達到節能環保，以及避免意外停電的使用功效。
