The invention discloses an air cleaner with the oxygen generation function. The air cleaner with the oxygen generation function comprises a machine shell, wherein a control mainboard is arranged in the machine shell, the control mainboard is connected with a motor and a negative ion generator, the motor is provided with blades, an operation panel is connected with the control mainboard and is arranged on the machine shell, an air inlet and air outlets are also formed in the machine shell, a plurality of oxygen generation plates which are overlapped are also arranged in the machine shell, cavities used for air intake and air outflow are formed between the oxygen generation plates, a filter screen is arranged between the oxygen generation plates and the cover plate, light sources are arranged on the side ends of the oxygen generation plates, the light sources are connected with the control mainboard, and each oxygen generation plate is coated with an oxygen generation coating used for generating oxygen together the light sources through photosynthesis. The air cleaner with the oxygen generation function is simple in structure and convenient to use, and the problem that a traditional domestic oxygen generator is complicated in structure and high in cost is solved.