A microwave auto-induction aroma diffuser comprises an aroma diffuser body, and the aroma diffuser body consists of a bottom housing, a fan, a DC seat, a DC seat fixed mount, a water tank, a face housing, a water tank spray cover, a main board, an atomizer plate and an atomizer plate bracket. According to the utility model, the aroma diffuser body is provided with a microwave auto-induction switch to realize automatic control over the working state thereof when people get close, the aroma diffuser starts to work and when people leave, the aroma diffuser is automatically switched into the standby state.
