The present invention relates to a scraper structure for an aquarium, which is mainly provided with a plastic scraper on the assembly part of the scraper main body, and the plastic scraper is combined with the assembly part of the scraper main body by a locking unit, thereby the plastic scraping The plate setting can avoid scratching the wall surface of the aquarium when scraping the dirt on the wall surface of the aquarium, and avoiding the rust of the plastic scraper, and the plastic scraper can be turned over after being scraped and passivated. The plastic scraper is used to replace other scraping edges, thereby achieving the benefits of saving the use cost.本創作係有關於一種水族箱用刮刀結構,係主要於刮刀主體其組立部上設置有一塑膠刮板,並以一鎖固單元將塑膠刮板與刮刀主體之組立部結合固定,藉此塑膠刮板設置即可避免在刮除水族箱壁面污垢時,不慎於水族箱壁面造成刮痕情形,同時可避免塑膠刮板生銹情況,另當塑膠刮板其一刮邊磨損鈍化後係可翻轉該塑膠刮板以更換其它刮邊使用,據此,俾達到節省使用成本等效益。