The substrate of the riparian wetland of Maliao River, Lake Fuxian catchment, was selected to investigate the removal andtransfer process of phosphorus. The experiments of adsorption dynamics was examined under the low concentration scenario(P≤3.0mg/L), and the experiment of adsorption isotherms also was examined under high and low concentration scenario. The results ofdynamic adsorption showed that phosphorus release existed in the substrate when the initial concentrations of phosphorus were 0.02and 0.03mg/L. The phosphorus had been adsorbed by substrate when the initial concentration had been increased to 0.5mg/L. Finallythe adsorption curves tended to be stable after 24 hours. Regression analysis based on Freundlich model and Langmuir model on theadsorption isotherms of substrates was carried on by monadic linear regression method. Based on Freundlich model analysis, theadsorption experiment of phosphorus on substrate was examined between overlying water and substrate under the high initialconcentration as well as 24 hours oscillation. The results showed that most of the phosphorus adsorbed originally in the substrate wasreleased within 24 hours under high concentration condition.