Abstract: For the purpose of expatiating the application of ANSYS and MATLAB in the data processing and visualization of numerical simulation of hemodynamics,the finite element analysis and the preprocessing and postprocessing of hemodynamics of arterial vessels were accomplished with ANSYS and MATLAB.The internal functions and program designing of ANSYS and MATLAB according to their respective characteristics were used to make the visual processing on the finite element meshing and result showing.Some typical visual preprocessing and postprocessing results of calculation models of blood flow in arteries were obtained.The temporal-spatial distributions of physical variables in the flow field were displayed visually.The research results show that the temporal-spatial distributions of velocity,pressure and wall shear stresses in the interesting area of the flow field can be displayed visually to supply visual data for the vestigators.