Aiming at requirements for the design of the sedan driver door,the static tests of window frame stiffness,sill line stiffness concave stiffness,outer plate and hinge were carried out by utilizing the static stiffness test system.The test results show that stiffness of the sash have sufficient capacity to resist body impact deformation; windowsill line have smaller deformation by outsiders load force,which meet the design requirements; the driver outside board has good elastic deformation under load and will not dent; The door hinge has sufficient rigidity intact with the vertical load.The experiment provides the experiment basis for latter experimental analysis of the research and department of door of CAE analysis and optimization.