The utility model relates to a be suitable for device that planthopper isolated rearing and biology characteristic were observed, it includes transparent cylinder cover, plastics cup and end box, the transparent cylinder cover is binded by a plurality of monomer transparent cylinder cover to constitute, the upper shed of every transparent cylinder cover passes through the breathable yarn net parcel, and the stopper has the cotton in the under shed, the plastics cup is the transparent configuration, its bottom lock, and the top is the opening form, contain the nutrient solution that accounts for its volume third in the plastics cup, end box is airtight not translucent construction, the hole of placing that is used for placing the plastics cup is evenly offered to the top surface of end box, the diameter of placing the hole is greater than the bottom diameter of plastics cup and is less than the top bore of plastics cup, transparent cylinder after binding cover arrange in the plastics cup and along with the plastics cup arrange in place downthehole. The utility model has advantages of simple and reasonable structure design, not only available seedling stage the rice, also can raise the plant hopper with the single trunk of rice in tillering stage, help acquireing and receive the different times of planthopper to get all kinds of rice materials of eating under coercing.