One of the countries that don't need a visa to come to China:

According to the Ministry of Foreign Affairs of the People's Republic of China, holders of private passports of Singapore, Japan, and Brunei are exempted from the visa requirement when they come to mainland China for sightseeing, doing business, visiting relatives and friends, or in transit for not more than 15 days.

South Korea, the United States, Canada, Australia, New Zealand, as well as Germany, France, Austria, Sweden, Denmark, Norway, Finland, Iceland, the Netherlands, Belgium, Luxembourg, Spain, Portugal, Greece, Italy and other Schengen Agreement countries, regardless of passport holders, transit Shanghai for 48 hours without a visa.

Ordinary passport holders from Malaysia, Thailand, South Korea, the Philippines, Indonesia, Germany, Britain, France, Austria, Italy, Russia, Switzerland, Sweden, Spain, the Netherlands, the U.S., Canada, Australia, New Zealand, and other Schengen Agreement countries, who are in a group organized by an international travel agency approved by the National Tourism Administration (NTA) and registered in Hainan, and who stay in Hainan for less than 15 days, are exempted from visa issuance. The visa can be exempted.

Foreigners holding ordinary passports of countries that have established diplomatic relations with us and are traveling to Hong Kong and Macao can be exempted from applying for visas for stays of up to six days when they are organized by travel companies registered in Hong Kong and Macao for travel to the Pearl River Delta region of Guangdong (the administrative regions under the jurisdiction of Guangzhou, Shenzhen, Zhuhai, Foshan, Dongguan, Zhongshan, Jiangmen, Zhaoqing, Huizhou and Shantou).

Foreigners holding a joint ticket and having booked a joint seat on an international flight directly transiting from China and staying in the transit city for not more than 24 hours without leaving the airport are exempted from visa issuance.

Hong Kong, Macao and Taiwan compatriots are exempted from visas for entry into the mainland, but are required to hold valid travel documents (such as Hong Kong Resident's Permit for Proceeding to and from the Mainland, Macao Resident's Permit for Proceeding to and from the Mainland, i.e., Home Visit Permit; and Taiwan Resident's Permit for Proceeding to and from the Mainland, i.e., Taiwan Compatriot's Permit).

Some countries' diplomatic and official passports are exempted from visa requirements for those who stay in China for less than 30 days from the date of entry. All others require a visa.

Second, the advantages of visa-free:

The biggest advantage of the visa-free policy is the convenience, less visa links, saving the time and cost of the visa required to deal with, tourists will be able to more freely arrange travel plans. In addition the world's tourist destination will unilaterally give the rest of the world this treatment to promote the development of their tourism industry.

Visa-free is the will of the country or region if the country or region really want to make their own or the region's ordinary passport to enjoy the visa-free treatment of many countries or regions will spare no effort to fight for the best example is Malaysia, we go to see Malaysia, ordinary passports can be free of visas to go to a lot of other countries or other regions to take the mandatory visa countries and regions such as North Korea, etc., but also to many countries visa-free treatment. But also give many countries visa-free treatment such as Vietnam, Malaysia, Iraq, Iran, Afghanistan and so on.