There is still religion allowed in China

Article 36 of the Constitution of the People's Republic of China of 1982 specifies that:

Citizens of the People's Republic of China enjoy freedom of religious belief. No state organ, public organization or individual may compel citizens to believe in, or not to believe in, any religion; nor may they discriminate against citizens who believe in, or do not believe in, any religion. The state protects normal religious activities. No one may make use of religion to engage in activities that disrupt public order, impair the health of citizens or interfere with the educational system of the state. Religious bodies and religious affairs are not subject to any foreign domination.

The law affords protection to five officially sanctioned religions: the Buddhist Association of China, Chinese Taoist Association, Islamic Association of China, Three-Self Patriotic Movement and Chinese Patriotic Catholic Association. Religious groups are required to register with the State Administration for Religious Affairs (SARA, formerly known as the central Religious Affairs Bureau) or its provincial and local offices (still known as Religious Affairs Bureaus (RABs)). SARA and the RABs are responsible for monitoring and judging the legitimacy of religious activity.

Proselytizing is only permitted in private settings or within registered houses of worship. Proselytization in public, in unregistered churches or temples, or by foreigners is prohibited. Members of the officially atheist Communist Party are strongly discouraged from holding religious faith.

[link to en.wikipedia.org (secure)]