A radial arterial wave signal acquisition device includes a shell body provided with an accommodation space in the shell body, and a fixing member provided in the shell body. An upper edge of the shell body is provided with an abutment top, and the abutment A converter is arranged in the top, and the converter is connected with a signal transmission line. A pressure sensor is arranged in the accommodating space of the casing body, and a pressure rod and an elastic member are arranged below the pressure sensor. A sensing head is provided with a wave signal sensor, a telescopic part, and a fixed part. The fixed part of the sensor head is provided on the fixed part of the shell body. The wave signal sensor is used for resisting Radial artery fluctuation signals were obtained on the radial artery. The pressure signal and the radial artery wave signal are synchronously converted into a telecommunication signal by the converter which has been pushed to the top, and a synchronous telecommunication signal with a lower pressure channel and radial artery wave can be transmitted for external use.一種橈動脈波動信號擷取器,其包含:一殼本體,該殼本體內設有容置空間,又該殼本體內設有固定件,該殼本體上緣設有被抵頂部,該被抵頂部內設有一轉換器,該轉換器連接設有一信號傳輸線。一壓力傳感器,該壓力傳感器係設於該殼本體之容置空間內,該壓力傳感器下方設有一壓力桿、一彈性件。一感測頭,該感測頭上設有一波動信號傳感器、一伸縮部、被固定件,該感測頭之被固定件係設於該殼本體之固定件上,該波動信號傳感器係用來抵於橈動脈上獲得橈動脈波動信號。藉由該被抵頂部之轉換器將該壓力信號與橈動脈波動信號同步轉化為電信訊號,進而可傳出一具有下壓力道及橈動脈波動之同步電信訊號供外部使用。