An embodiment relates to a subglottic pressure tester and a subglottic pressure enhancer having the same. The subglottic pressure tester comprises: a key signal input unit which receives a plurality of subglottic pressure test commands by a key operation of a user so that the volume or sound level of the user can be individually or collectively tested according to a subglottic pressure test； a microphone amplification unit which receives and amplifies a speech signal of the user uttered in response to the set depth of water according to the amount of the subglottic pressure during the test； a microphone filter which filters the amplified speech signal of the user according to a predetermined low cutoff frequency； an integrator which performs the DC-signalization of the filtered speech signal of the user to supply a value, half of a DC signal, according to DC-signalization while supplying a corresponding integrated signal； a comparator which compares the supplied value, half of the DC signal, with the speech signal of the user before the DC signal is input into the integrator； a controller which calculates a volume with the integrated signal according to the input to notify normality when the calculated volume is equal to or greater than a set volume corresponding to the set depth of the water, and notify abnormality when the calculated volume is less than the set volume, and counts the period of a pulse signal and calculates a sound level to notify normality when the calculated sound level is within a set sound level corresponding to the set depth of the water and notify abnormality when the calculated sound level is beyond the set sound level； and a display unit which lights in correspondence with each notification of the controller. The subglottic pressure is gradually increased by adjusting the water height to improve communication ability of a subject with weak subglottic pressure. The subglottic pressure is easily measured when a subject simply blows the water,
