The invention provides a stack type cascaded efficient ozone generation device. The stack type cascaded efficient ozone generation device comprises a combined discharging body, an integrated cascaded gas path pipeline assembly, a display control interface assembly and an integrated water path pipeline assembly, wherein the combined discharging body is composed of a plurality of integrated unit ozone assemblies which are connected in series and stacked in sequence; a sealing ring is arranged between the adjacent integrated unit ozone assemblies; an integrated cascaded gas path pipeline assembly and an integrated water path pipeline assembly are arranged at upper and lower parts of the combined discharging body respectively; an insulating high-voltage display control and power supply interface assembly is arranged at a front end of the combined discharging body. The stack type cascaded efficient ozone generation device has high integration degree; the volume and weight are 60 percent of those of present like products; the device is simple in structure and low in cost; compared with the like products, the quantity of parts is reduced by 70 percent or more; in assembling and maintaining processes, the time is saved by about 2/3 and the energy consumption is reduced by 45 percent; high yield and high concentration of ozone are realized; the ozone concentration of 150mg/L can be realized under a relatively low energy consumption condition and effective treatment requirements on pollutants which are highly difficultly degraded are met.