Abstract: The heterogeneous structure of ozone partial pressure profile have been studied which probed in Kunming region in the spring of 2001.Structural function and hyperbolic function is used to establish selfsimilar scaling law to describe the heterogeneous structure(such as:intermittency,roughness,scaling index,power spectrum index fractal dimension etc).The result shows that the fractal dimension of perpendicular spatial series of ozone partial pressure ranges from 1 to 2 and power spectrum index ranges from 1 to 3;the fractral dimension near upper troposphere is the largest(D =1.365) but the value in the middle and lower troposphere is the least(D =1.205);the perpendicular intermittency of ozone profile pressure in stratosphere is strong and rough,but the value near upper troposphere is weak and smooth which have the strongest singularity.