Nitrogen is one kind of important elements related to eutrophication of lakes. The removal of exterior pollution source and interior pollution source is significant for eutrophication control of lakes. Ammonia removal by fillings is an important ways for the control of exterior pollution source of lakes. The ammonia adsorption behavior of four kinds of fillings, such as savageness zeolite, haydite, vermiculite and soil were investigated. The main way of ammonia removal by fillings, the effects of solution pH and temperature on removal rate of ammonia were observed. The results indicated that there were significant differences between zeolite and other fillings, and the sorption efficiency in the order were zeolite, vermiculi, soil and haydite. The ion exchange function is the main way of removing ammonia by zeolite, zeolite has the worst sorption ability, whereas other three fillings have almost the same sorption and ion exchange capacities. In addition, adsorption capacities of these four fillings decreased as temperature increased between 15-35℃;as the pH values increased at the range of 3-9 the adsorption capacities of these four fillings increase too. All adsorption experiments reached equilibrium within six hours.