An ophthalmic laser treatment apparatus including: an irradiation optical system including an optical scanner for two-dimensionally scanning a spot of a treatment laser beam from a laser light source and a spot of an aiming beam from an aiming light source on a tissue of a patient's eye; control means configured to control the irradiation optical system to irradiate the treatment laser beam to a spot position based on an irradiation pattern in which a plurality of spots for irradiation of the treatment laser beam are arranged, the control means being arranged to control the irradiation optical system based on an aiming rule associated with the irradiation pattern to irradiate the aiming beam to the spot position to indicate the spot position for irradiation of the treatment laser beam; and movement means configured to move an irradiation position of the treatment laser beam and the aiming beam, wherein the control means is configured to control the irradiation optical system to irradiate the treatment laser beam to a sequence of spots from a n-th spot position (n is a natural number) to a m-th spot position (m is a larger natural number than n) in a first aiming irradiation region, determined in association with the irradiation pattern, the distance between spots in the irradiation pattern being the spot interval, and then, after irradiation of the treatment laser beam to the first aiming irradiation region, controls the movement means to move the irradiation position of the aiming beam based on the aiming rule to a position different from the spot position just irradiated by the treatment laser beam in a second aiming irradiation region, the second aiming irradiation region being different in position on a fundus of the patient's eye from the whole first aiming irradiation region, and the first aiming irradiation region and the second aiming irradiation region being spaced by a spot interval, so that an edge of the spot of the aiming beam based on the aiming rule in the second aiming irradiation region is located at a position apart by the spot interval of the irradiation pattern from an edge of the irradiated spot of the treatment laser beam in the first aiming irradiation region. an irradiation optical system including an optical scanner for two-dimensionally scanning a spot of a treatment laser beam from a laser light source and a spot of an aiming beam from an aiming light source on a tissue of a patient's eye; control means configured to control the irradiation optical system to irradiate the treatment laser beam to a spot position based on an irradiation pattern in which a plurality of spots for irradiation of the treatment laser beam are arranged, the control means being arranged to control the irradiation optical system based on an aiming rule associated with the irradiation pattern to irradiate the aiming beam to the spot position to indicate the spot position for irradiation of the treatment laser beam; and movement means configured to move an irradiation position of the treatment laser beam and the aiming beam, wherein the control means is configured to control the irradiation optical system to irradiate the treatment laser beam to a sequence of spots from a n-th spot position (n is a natural number) to a m-th spot position (m is a larger natural number than n) in a first aiming irradiation region, determined in association with the irradiation pattern, the distance between spots in the irradiation pattern being the spot interval, and then, after irradiation of the treatment laser beam to the first aiming irradiation region, controls the movement means to move the irradiation position of the aiming beam based on the aiming rule to a position different from the spot position just irradiated by the treatment laser beam in a second aiming irradiation region, the second aiming irradiation region being different in position on a fundus of the patient's eye from the whole first aiming irradiation region, and the first aiming irradiation region and the second aiming irradiation region being spaced by a spot interval, so that an edge of the spot of the aiming beam based on the aiming rule in the second aiming irradiation region is located at a position apart by the spot interval of the irradiation pattern from an edge of the irradiated spot of the treatment laser beam in the first aiming irradiation region.