Based on the satellite data and stratocumulus mixed cloud microphysical data measured by three airplanes in Beijing,Shanxi and Hebei,the stratocumulus mixed cloud spatial microphysical structure characteristics around Beijing area are analyzed.The results show that the spatial distribution of cloud microphysical parameters in front of cold front is nonuniform,it is bigger above 2 700 m,the vertical particles concentration and diameter is inverse correlation,the extreme of cloud particles concentration has 7 orders of magnitudes,the differnce of big particles concentration is 7 magnitudes,the difference of precipitation particles is 6 magnitudes.Cloud particles concentration and diameter in horizontal is ununiform and anticorrelation.The vertical cloud microphysical parameters in middle of cold front are ununiform and the peak values appears in 2 500—3 600 m and above 4 000 m.The concentration and diameter of cloud particles present inverse correlation,the extreme difference of cloud particles concentration is 6 magnitudes,the difference of big particles concentration is 7 magnitudes,the difference of precipitation particles is 5 magnitudes.The cloud particles concentration and diameter in horizontal is ununiform,presenting inverse correlation.The cloud particles spectrum is unimodal in front of cold front on 4 800 m,multimodal on 4 200 m and bimodal on 3 600.The cloud precipitation particles spectrum is monotone decreasing on 4 800 m,peak value is in droplet(≤100 〖WTBZ〗μ〖WTB1〗m).The spectrum patterns on 4 200 m and 3 600 m are bimodal,the peak value are separately in 100 〖WTBZ〗μ〖WTB1〗m and 230 〖WTBZ〗μ〖WTB1〗m.The precipitation particles spectrum patterns on three layers are unimodal and the peak values are similar.The cloud particles spectrum patterns on three layers in the middle of cold front appears a big difference.The spectrum patterns on 4 800 m and 4 200 m are unimodal while peak values appear in droplet and 15 〖WTBZ〗μ〖WTB1〗m,separately.The spectrum patterns on 3 600 m is bimodal,peak values are in 7 〖WTBZ〗μ〖WTB1〗m and 30 〖WTBZ〗μ〖WTB1〗m,separately.The cloud precipitation spectrums on three height layer is a little differece.It is monotone decreasing spectrum on 4 800 m,peak value appears in droplet(≤100 〖WTBZ〗μ〖WTB1〗m).The spectrums are bimodal on 4 200 m and 3 600 m,peak values appear in less than 100 〖WTBZ〗μ〖WTB1〗m and 200 〖WTBZ〗μ〖WTB1〗m,separately.The precipitation spectrums on three layers are similar.They are unimodal.