To substantially save power consumption by charging air-conditioning load calory only with solar heat.

An air conditioning mat system includes: a heat collecting plate 10 that heats a heat exchange medium by collecting solar heat; a heat storage tank 20 that stocks air conditioning water 40, and includes a heat exchanger 30, an auxiliary heat source part 90, and an exhaust pipe 45; a circulation pump 70 that supplies the air conditioning water 40 in the heat storage tank 20 to a mat 50 through a connected piping; and the mat 50 that locally air conditions the air conditioning water 40 supplied by the circulation pump 70; and a controller 60 that adjusts a water level of the water in the heat storage tank 20, controls a control valve 62 that opens/closes the air conditioning water supplied to the individual mat 50, controls whether the circulation pump 70 is operated, and controls driving of the auxiliary heat source part based on an output signal of a temperature measuring part 91, and locally air conditions.