To provide a cuff for pulse wave detection which is easily sealable, has little inconvenience such as moisture invading into a pressurized bag and no fear of electric shock.

This cuff for pulse wave detection comprises a pressurized air bag 2 to press a human body such as fingers, or the like, a tube 3 to be connected with and supply pressurized air to the pressurized air bag 2, an optoelectric element 4 for pulse wave detection attached to the pressurized air bag 2, and a lead wire 5 embedded in a tube 3 to transmit pulse wave signals and one end of which is connected to the optoelectric element 4.