A smart chair includes a seat body. The seat body includes a power supply installed in the seat body, wherein the power supply is electrically connected to a voltage detection unit and a voltage regulation unit. The voltage detection unit detects a load signal, the voltage regulation unit regulates and outputs a DC voltage according to the load signal. Therefore, combined with concepts of leisure, recreation, or business, the present invention can automatically detect and output a right DC voltage.一種智慧椅，包括一座體。座體包含安裝於座體的一電源供應器，其中電源供應器電性連接有一電壓偵測單元和一電壓調整單元。電壓偵測單元偵測一負載訊號，經由電壓調整單元根據該負載訊號調整的輸出一直流電壓。藉此，結合休憩、休閒或商務概念，具有可自動偵測和輸出適合的直流電壓。
