The invention discloses a mixed aerosol spraying device. The mixed aerosol spraying device is characterized by comprising a tank body used for containing a first material; an inner container used for independently containing a second material is arranged in one end of the tank body in a sealed mode, a puncture type valve mechanism capable of puncturing the inner container so as to mix the second material with the first material is arranged in the inner container, and a mist spraying valve communicated with the tank body is arranged at the other end of the tank body in a sealed mode. The mixed aerosol spraying device aims at overcoming shortcomings in the prior art, and is simple in structure, convenient to use and convenient to assemble; the two materials can be independently stored; when the mixed aerosol spraying device is used, the two materials can be rapidly mixed and used.