The invention relates to an ejector-type refrigeration cycle device. When increasing the refrigerant discharge capability during startup of the compressor (11) of an ejector-type refrigeration cycle device, the refrigerant discharge capability is increased in such a way that the amount of increase thereof, per prescribed unit time, is less than the maximum capability increase amount to which the compressor (11) can be increased per prescribed unit time. In so doing, even in the event of inflow of gas-liquid two-phase refrigerant into a refrigerant inflow passage (31e) constituting a spiral flow generating unit, acceleration of the flow velocity of the gas-liquid two-phase refrigerant to high speed is minimized, friction sound produced as the gas-liquid two-phase refrigerant flows through the refrigerant inflow passage is reduced, and the noise emitted by the ejector is reduced.