A liquid ejection head includes a liquid channel through which a first liquid and a second liquid flow, a pressure generation element that pressurizes the first liquid and an ejection orifice through which to eject the second liquid in a direction crossing a direction of the flow of the first liquid and the second liquid via the pressurization. A distance in the direction of the flow from a position in the liquid channel at which the first liquid and the second liquid merge to the ejection orifice is greater than an interface stabilization distance in the direction of the flow from a position at which the first liquid and the second liquid contact each other to a position at which a stable interface is obtained between the first liquid and the second liquid.