To provide a flow rate variation corresponding type pump and a bubble bathtub device capable of internally corresponding to a flow rate variation even when the flow rate variation exists in an outside channel, and capable of easily and simply detecting operational abnormality.

The flow rate variation corresponding type pump has a flow rate sensor 3 provided in an inside channel and corresponds to the flow rate variation by measuring a flow rate change in the inside channel by the flow rate sensor 3 even when the flow rate variation exists in the outside channel, and the bubble bathtub device is furnished with this flow rate variation corresponding type pump and an air intake part provided on a delivery pipe, blows out bubbles in a bathtub body and can correspond to the flow rate variation even when it exists in a circuit.