A speaker module includes a speaker unit, a main body and a speaker carrier. The main body includes a sound outlet opening and an air pressure regulating structure. The sound outlet opening is configured to expose the speaker unit. The speaker carrier is configured to carry the speaker unit. The speaker carrier is disposed in the main body together with the speaker unit, and forms a resonance space with the main body. The air pressure regulating structure is configured to regulate the air pressure of the resonance space.