An austenitic heat-resistant cast iron excellent in fatigue life and creep resistance is introduced. The austenitic heat-resistant cast iron excellent in fatigue life and creep resistance of the present invention has a carbon content of 2.0 wt% or less (excluding 0 wt%), 4.5 to 4.9 wt% of silicon (Si), 0.5 to 0.7 mol of manganese (Mn) (Fe), 23.0-25.0 wt% of nickel (Ni), 2.0-2.3 wt% of chromium (Cr), 0.5-0.9 wt% of molybdenum and 0.4-0.7 wt% of vanadium (V) And inevitable impurities.
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