A clip-type monitoring device for wirelessly transmitting a heart rate comprises a housing of which the back is formed with a clip, which may be clipped onto the clothes, and the flank is formed with a jack connected to an external signal; a heart rate monitoring unit formed with multiple electrode pads extending from the housing; a voltage sensor unit provided in the housing so that the voltage variation frequency measured is filtered by the inductors and then transmitted to the filter shaping amplifier circuit to receive an amplified signal; and a radio frequency module having a wireless signal transmission circuit and provided in the housing for transmitting the signal amplified by the voltage sensor unit to a display storage device having a wireless signal receiving circuit. The housing inside which the heart rate monitoring module is provided to accurately measure the pulsation is light and thin and conveniently hanged on the clothes without burden.