An official statement jointly released by the SPC and the SPP Wednesday said with rapid development of the information technology, mobile phone has become a new platform transmitting pornographic content and an increasing number of people used cell phone to browse the Internet.

"The flooding lewd information online has seriously harmed the growth of minors, undermined social morality and resulted in crimes," the statement said.

The new judicial interpretation provided strong legal backup for judicial authorities to "cut down the profit chain behind porn Web sites," it said. The profit chain links Web sites, telecommunication operators, advertisers and the third party payment platform.

It said the new interpretation was helpful in "purifying on-line environment, promoting a healthy development of the Internet sector and ensuring healthy growth of the youth."

China has more than 338 million Internet users, and more than 60 percent are younger than 30, according to the China Internet Network Information Center.

On Dec. 8, the country launched a new round of crackdown on spreading pornographic contents through Internet or mobile WAP sites to "purify the social environment." The campaign is expected to run to May.

More than 15,000 pornographic Web sites in the country, including 11,000 mobile WAP sites, were shut down or blocked last year.