A laser treatment apparatus for irradiating an affected part of a patient with a treatment laser beam to treat the affected part is disclosed. The apparatus includes a treatment beam irradiation part including an irradiation optical system for delivering the treatment laser beam to the affected part to irradiate it; an input part for inputting an instruction signal of irradiation of the treatment laser beam; a mode selection part for selecting one of an irradiation ready mode in which the irradiation of the treatment laser beam is enabled when the irradiation instruction signal is input with the input part and a standby mode in which the irradiation of the treatment laser beam is disabled even if the irradiation instruction signal is input; a detection part for detecting whether an operator is in a predetermined condition to enable the laser irradiation; and an irradiation control part for controlling the irradiation of the treatment laser beam in accordance with a selection result by the mode selection part, a detection result by the detection part, and a presence/absence of input of the irradiation instruction signal.