By means of the NCEP reanalysis data and the conventional surface observation and radiosonde data from 1981 to 2005, combining the LambJenkinson (LJ) with the traditional synoptic classification schemes, the circulation patterns for fog weather in Fuzhou are classified. It is shown that the results from the traditional and LJ schemes are almost the same in SLP (Sea Level Pressure) distribution; that is, there existed a uniform pressure field during the occurrence of heavy fog. The LJ scheme can get more detailed and complete classification results and provide important bases for objective fog forecasting in Fuzhou.