Passive sampler is simple and inexpensive measuring equipment for air pollution. In this study we developed colorimetric ozone passive sampler which was coated a colorimetric reagent to a filter substrate. Interference of criteria all pollutant ($SO_2,;NO_2,;CO$) on ozone passive sampler was investigated through experimental chamber. Field measurement of developed ozone passive samper was compared automatic sampler result in Suwon area. The results shows interference of $SO_2$ gas is larger than other gases. Developed passive sampler can be roughly applicable to wind speed range from 0.8 to 3.3 m/s, temperature range from 3.9 to $27.5^{circ}C$ and relative humidity range from 48 to 84%.