  We study the Hawking radiation from Rotating black holes from gravitational
anomalies point of view. First, we show that the scalar field theory near the
Kerr black hole horizon can be reduced to the 2-dimensional effective theory.
Then, following Robinson and Wilczek, we derive the Hawking flux by requiring
the cancellation of gravitational anomalies. We also apply this method to
Hawking radiation from higher dimensional Myers-Perry black holes. In the
Appendix, we present the trace anomaly derivation of Hawking radiation to argue
the validity of the boundary condition at the horizon.
