A sphygmomanometer is provided, including a housing (1); a circuit board (2) and a power supply (3) that are disposed within the housing (1); and a first electrode (5), a second electrode (6) and a photoelectric sensor (7) that are electrically connected to the circuit board (2), respectively; wherein the first electrode (5), the second electrode (6) and the photoelectric sensor (7) are embedded at a surface of the housing (1).