Is it useful to call Zhengzhou Public Security Bureau to report pornography?

You can choose to call. You can also log on to the website of China to report pornography and illegal publications online. If an actor makes, copies, publishes, sells or disseminates obscene articles for profit, it constitutes the crime of making, copying, publishing, selling or disseminating obscene articles for profit, and he shall be sentenced to fixed-term imprisonment of not more than three years, criminal detention or public surveillance, and shall also be fined.

Whoever produces, reproduces, publishes, sells or disseminates obscene articles shall be sentenced to fixed-term imprisonment of not more than three years, criminal detention or public surveillance and shall also be fined; If the circumstances are serious, he shall be sentenced to fixed-term imprisonment of not less than three years but not more than ten years and shall also be fined; If the circumstances are especially serious, they shall be sentenced to fixed-term imprisonment of not less than 10 years or life imprisonment, and shall also be fined or confiscated.