Abstract: In this paper a parameterized method based on turbulent statistical theory is proposed to estimate atmospheric diffusion coefficients from sounder facsimile chart.Using this method,only atmospheric boundary layer structure information is needed which can be obtained from acoustic radar facsimile and routine observed wind data at IOm.Pasquill atmospheric stability categories are not necessary.The parameterized formula in this method is examed is examed by use of field observed data,it is showed that the computed results of this formula are correspondent with observations.The calculated results of this new method are also compared with P-G diffusion curves.