The present invention discloses an air valve and a speaker. The air valve comprises a valve body (11), an elastic valve plate (12), an air inlet (13) penetrating through an inner surface (11b) and an outer surface (11a) of the valve body (11), and an air outlet (14) penetrating through an inner surface (12b) and an outer surface (12a) of the valve plate (12), wherein the valve plate (12) is connected with the valve body (11) in a sealing manner to form an annular sealing area encircling the air outlet (14) and the air inlet (13), and wherein the inner surface (11b) of the valve body (11) covers the air outlet (14), and/or the inner surface (12b) of the valve plate (12) covers the air inlet (13). The speaker is provided with the air valve provided by the present invention. The air valve provided by the present invention can be opened or closed via elastic deformation of the valve plate of the air valve, so that the air valve can be thinner. Therefore, the air valve can be perfectly matched with products smaller in size, such as a micro speaker, significantly reducing the difficulty in adjusting the micro speaker in a limited space.