A liquid droplet ejecting method for ejecting a liquid from at least one ejection hole to form the liquid into liquid droplets, the method comprising: applying a vibration to the liquid in a liquid column resonance-generating liquid chamber , in which the ejection hole is formed, to form a standing wave through liquid column resonance, wherein a vibration having a frequency which satisfies f = N × c/ is applied to the liquid, where L represents a length of the liquid column resonance-generating liquid chamber in a longitudinal direction thereof, c represents a sound speed of the liquid, and N is a natural number, and ejecting the liquid from the ejection hole , which is formed in a region corresponding to an antinode of the standing wave, to thereby form the liquid into the liquid droplets, characterized in that a drive signal from a vibration generating unit excites the vibration generating unit by pulse groups which is primarily composed of a liquid column resonance frequency depending on the length of the liquid column resonance-generating liquid chamber in the longitudinal direction thereof, wherein the pulse groups are divided into three pulse parts of a preparatory pressure generating pulse part, a drive main pulse part, and a residual vibration undoing pulse part, wherein the preparatory pressure generating pulse part is present at a leading edge of the pulse groups and excites the liquid in the liquid column resonance-generating liquid chamber to allow the liquid to remain in a state of not flying the liquid droplets, the drive main pulse part is an application pulse which follows the preparatory generating pulse part and ejects the liquid from the ejection hole , and the residual vibration undoing pulse part is an application pulse immediately after the drive main pulse part and includes a frequency component having a phase opposite to that of a main frequency component of the drive main pulse part. applying a vibration to the liquid in a liquid column resonance-generating liquid chamber , in which the ejection hole is formed, to form a standing wave through liquid column resonance, wherein a vibration having a frequency which satisfies f = N × c/ is applied to the liquid, where L represents a length of the liquid column resonance-generating liquid chamber in a longitudinal direction thereof, c represents a sound speed of the liquid, and N is a natural number, and ejecting the liquid from the ejection hole , which is formed in a region corresponding to an antinode of the standing wave, to thereby form the liquid into the liquid droplets, characterized in that a drive signal from a vibration generating unit excites the vibration generating unit by pulse groups which is primarily composed of a liquid column resonance frequency depending on the length of the liquid column resonance-generating liquid chamber in the longitudinal direction thereof, wherein the pulse groups are divided into three pulse parts of a preparatory pressure generating pulse part, a drive main pulse part, and a residual vibration undoing pulse part, wherein the preparatory pressure generating pulse part is present at a leading edge of the pulse groups and excites the liquid in the liquid column resonance-generating liquid chamber to allow the liquid to remain in a state of not flying the liquid droplets, the drive main pulse part is an application pulse which follows the preparatory generating pulse part and ejects the liquid from the ejection hole , and the residual vibration undoing pulse part is an application pulse immediately after the drive main pulse part and includes a frequency component having a phase opposite to that of a main frequency component of the drive main pulse part. <EOS>