The invention relates to an ozone disinfecting integrated device of an overground swimming pool, comprising a first water flow channel and a second water flow channel, wherein the second water flow channel and the first water flow channel are connected in parallel, the second water flow channel is connected with a mixing container through a water pump and an air and liquid mixing device in series, an air inlet of an ozone generator is connected with an air inlet through an air pump and a drying pipe, and an air outlet of the ozone generator is connected with an air inlet of the air and liquid mixing device through a one-way valve and a pipeline. Because ozone generated by the ozone generator is used for sterilizing and disinfecting water and improving water quality, the ozone disinfecting integrated device can carry out thorough sterilization and broad-spectrum sterilization, has high disinfecting efficiency, safety and environmental protection without any poisonous residues, high purity of water and no objectionable odor; and the ozone disinfecting integrated device has convenient installation, use and maintenance, no need of the operation of professionals and low cost and suitability for common families.