Statistics
Under Communist governments which have traditionally suppressed religious freedom and officially (often forcibly) endorsed atheism and due to this at one point the relation between Government with religions was not smooth in the past[6]. But in fact, the people are still holding private worship of popular traditional religions (Buddhism/Taoism) at home freely[7][8][9][10][11]. In recent years, the Chinese government has opened up to religion, especially traditional religions such as Mahayana Buddhism, Taoism and Confucianism because the Government also continued to emphasize the role of religion in building a "Harmonious Society," which was a positive development with regard to the Government's respect for religious freedom [12].
According to the old Chinese government estimate, there were "over 100 million followers of various faiths" in China[13]. Other estimates put about 100 million or about 8% Chinese who follow Buddhism, with the second largest religion as Taoism (no data), Islam (19 million or 1.5%) and Christianity (14 million or 1%; 4 million Roman Catholics and 10 million Protestants)[14]. According to the 1993 edition of The Atlas of Religion, the number of atheists in China is between 10 and 14 percent[15].
The accuracy of the religious data in China from census sources is questioned. While official data estimated 100 million religious believers in China, a survey taken by Shanghai University found that 31.4% of people above the age of 16, or about 300 million people, considered themselves religious. The survey also found that the major religions are Buddhism, Taoism, Islam and Christianity, accounting for 67.4 percent of believers. About 200 million people are Buddhists, Taoists or worshippers of legendary figures such as the Dragon King and God of Fortune, accounting for 66.1 per cent of all believers, while Christianity accounted for 12% of believers, or 40 million people.[16][17] The official China Daily called the Shanghai professors' research "the country's first major survey on religious beliefs"[18]. The Chinese government have accepted these new numbers. The wide disparity among these estimates underscores the difficulty of accurately surveying the religious view of a nation of over a billion people and the lack of reliable data.
China is also known to have small numbers of people who follow Hinduism, Dongbaism, Bon and a number of new religions and sects (particularly Xiantianism and Falun Gong).
However, some surveys suggest that the cultural adherents or even outright religious adherents of Buddhism could number as high as 50% to 80% of the population, or about 660 million to over 1 billion[19][20]. Some estimates for Taoism as high as 400 million or about 30% of the total population[21], but Adherents.com argues that these are actually numbers for Chinese folk religion or Chinese traditional religion, not Confucianism and Taoism themselves.[22]
The number of adherents to these religions can be overlaid in percentage due to the fact that mostly Chinese consider themselves both Buddhist and Taoist[23][24][25][26]. However, it was difficult to estimate accurately the number of Buddhists because they did not have congregational memberships and often did not participate in public ceremonies [27].
The minority religions are Christianity (between 40 million, 3%,[28] and 54 million, 4%[29]), Islam (20 million, 1.5%), Hinduism, Dongbaism, Bon and a number of new religions and sects (particularly Xiantianism and Falun Gong).
According to the surveys of Phil Zuckerman on Adherents.com in 1993; there was 59% (over 700 million)[30] of the Chinese population was irreligious and 8% - 14% was atheist (from over 100 to 180 million) as of 2005[6]. There are intrinsic logistical difficulties in trying to count the number of religious people anywhere, as well as difficulties peculiar to China. According to Phil Zuckerman, "low response rates," "non-random samples," and "adverse political/cultural climates" are all persistent problems in establishing accurate numbers of religious believers in a given locality[31]. Similar difficulties arise in attempting to subdivide religious people into sects. These issues are especially pertinent in China for two reasons. First, it is a matter of current debate whether several important belief systems in China constitute "religions." As Daniel L. Overmeyer writes, in recent years there has been a "new appreciation...of the religious dimensions of Confucianism, both in its ritual activities and in the inward search for an ultimate source of moral order"[32]. Many Chinese belief systems have concepts of a sacred and sometimes spiritual natural world yet do not always invoke a concept of personal god (with the exception of Heaven worship)[33].
It's a communist state.