The invention provides a bathtub with a microbubble water function. The bathtub comprises a bathtub body and a supporting installation part arranged on the periphery of the bathtub body. The bathtub is characterized in that a microbubble generator is arranged in a clamped cavity between one end of the bathtub body and one end of the supporting installation part, the microbubble generator comprises a household motor and a water cutting chamber connected with the household motor, an exhausting impeller integrally connected with the output shaft of the household motor is arranged in the water cutting chamber, the water cutting chamber is provided with a water inlet pipeline and a water outlet pipeline which are communicated with the water cutting chamber, one side of the water inlet pipeline is connected with an air inlet pipeline communicated with the outside, and the water outlet pipeline extends out of the clamped cavity and connected with an external shower head. The bathtub can mix air and water flow effectively and uniformly and generate a large quantity of microbubbles.