Abstract: A cooling apparatus for use in electronic equipment, being small in sizes and simple in the structures thereof, for achieving an increasing cooling capacity, comprises: a heat receiving member, which is thermally connected with a heat generating body, and which is configured to receive heat by means of a coolant flowing within an inside thereof; and a heat radiating member, which is configured to radiate the heat received within the heat receiving member, wherein the heat receiving member has a plate-like heat receiving base body, which is thermally connected with the heat generating body, and a heat receiving case body, which covers over the heat receiving base body, wherein the body members are joined with, so as to define a sealed space for running the coolant therein.