In this work presented calculations results of vertical ozone flux in atmospheric surface layer. This flux was calculate, using measurement data from vertical mast located on the territory of the observatory Fonovy since September 2015 until March 2016. Significant daily flux dynamics was record in September, February and March. Minimal flux observed at nighttime, then maximal flux observed at daytime and reached: -3.8, -3.2, -3.4, μg/(m22s) month relatively. For the October, November, December, and January significant daily dynamic is absent, daily value ux were -2.3 ± 0.2, -1.6 ± 0.2, -1.5 ± 0.3, -0.7 ± 0.3 μg/(m22s) relatively.