To provide an unmanned flight apparatus, unmanned flight method and unmanned flight program, capable of executing autonomous flight at a fire site even when visual observation is difficult and an electric wave for positioning from a navigation satellite cannot be received.SOLUTION: An unmanned flight apparatus 1 capable of autonomous flight includes: movement direction determination means for recognizing a traveling direction of the unmanned flight apparatus 1; high-temperature direction determination means for determining a direction of a high-temperature region of a fire; and movement direction control means for controlling a movement direction of the unmanned flight apparatus 1 on the basis of the high-temperature region recognized by the high-temperature direction determination means.SELECTED DRAWING: Figure 1
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