A blood pressure monitor comprising a main engine and a cuff is provided. The main engine has a housing, a pump which is disposed in the housing, and a plurality of first venting pipes. A plurality of first through-holes is formed on the housing to gas-communicate with the pump. The cuff has a gasbag and a plurality of gas nozzles. The gas nozzles extend from the gasbag to connect with the first venting pipes. Gas generated from the pump inflates the gasbag through the first through-holes, the first venting pipes, and the gas nozzles.
