By using the Parikh-Wilczek (PW) quantum tunneling method, the Hawking radiation of black holes inmassive gravity is investigated, the emission rate of particles and the black hole entropy are calculated. It is shownthat the emission spectrum is not purely thermal, depends on the increment of the black hole entropy, consists with anaccurate unitary theory and supports the standpoint of information conservation. Unlike other modified gravities, theentropy of the massive gravity black hole unexpectedly conforms to the area law just as that of Einstein gravity blackhole.