The invention discloses a method for detecting working performances of pervious concrete based on the rheology of slurry. The method directly establishes a relationship between rheological parametersof cement slurry and thickness of the largest coating layer of aggregate surface slurry and characterizes the work performances of the pervious concrete. The method comprises preparing slurry from Portland cement, a mineral admixture, water and additives according to a ratio, testing the rheological properties of the slurry, carrying out HB model (Tau=Tau 0 +gamma n) to obtain rheological parameters of the slurry, calculating the largest coating thickness of the slurry on the aggregate surface according to the tested cement slurry density and aggregate surface area and building the relationship between the rheological properties of the slurry and the largest coating layer of the slurry. The method can quantitatively detect the working performances of fresh pervious concrete, lays a theoretical foundation and provides the technical support for designing and preparing high-performance pervious concrete, and is conducive to large-scale popularization and application of pervious concrete.