A liquid ejection apparatus including: a liquid ejection head including two-dimensionally arranged pressure chambers, and corresponding ejection ports. On a surface on which the ejection ports are arranged, when a relative movement direction of a recording material is x, the direction perpendicular to the relative movement is y, a pitch of pixels is d, and m and n are different odd numbers of 3 or greater, the ejection ports are arranged in a manner such that and and nd are repeated alternately as the distance between the ejection ports adjoining in the y direction, and such that the ejection port arrays extending substantially linearly in an oblique direction to the x and y directions on an xy plane are formed. The ejection port arrays are constituted by (m+n)/2 ejection ports, and the ejection ports adjoining in the ejection port arrays are displaced by 2d in the y direction.