A smart bra is disclosed and comprise a main body and a gas gathering actuator. The main body comprises a support structure, a cup structure and two sets of fixing structure. The cup structure comprises an outer layer, an inner layer and an air bag layer, the air bag layer is covered by and disposed between the outer layer and the inner layer, and the air bag layer comprises an air channel, the air channel comprises a connecting end penetrating out from the cup structure. The gas gathering actuator is disposed on and connects with the connecting end, and comprises a gas delivery device, a control module and a pressure sensor. The gas delivery device provides gas to the air bag layer to adjust the inner pressure of the air bag layer. The control module controls the actuation of the gas delivery device, and controls a threshold setting mode of the pressure sensor. The pressure sensor detects the needed pressure of the gas in the air bag layer to monitor and notify the control module for controlling the actuation of the gas delivery device.一種智能胸罩，包含：胸罩本體及集氣致動器，胸罩本體包含：支撐結構、罩杯結構及兩組固定結構，而罩杯結構包含外表層、內表層及氣囊層，氣囊層被包覆於外表層與內表層之間，氣囊層包含氣體通道，並穿伸出罩杯結構外具有連接端；集氣致動器設置連接於連接端，並包含有氣體輸送器、控制模組及氣壓偵測器，氣體輸送器對氣囊層進行供輸氣體調整內部壓力，控制模組控制氣體輸送器之運作，以及控制氣壓偵測器之設定閥值模式，而氣壓偵測器偵測氣囊層內部氣體需求壓力，以監測通知控制模組以控制氣體輸送器之運作。
