In recent years, the situation of water pollution is more serious, which has greatly damaged the ecological environment of our country, according to the relevant instructions of the State Council , “sewage treatment” is an urgent problem. In order to achieve efficient treatment of sewage, preparation of large amounts of ozone-based microbubbles is the researching clue, developed two kinds of array ozone-based microbubble generators, namely a Co-flowing array and a T-junction array; the bubbles preparation effect of two kinds of bubble generators was verified by experiments, by verification, it is concluded that the bubbles preparation effect of the improved Co-flowing array microbubble generators is more ideal; Use the improved Co-flowing array microbubble generators to carry out the following researches, thereby, which provides technical supports for efficient sewage treatments.