According to the regulations of the articles of association of the UNWTO, after the amendment is approved by the general assembly, has yet to be more than two-thirds of members will take effect only after approval formalities.Since the 2007 amendment through the approval formalities as soon as possible to promote the member states, to become the UNWTO official language in Chinese came into effect as soon as possible, China united UNWTO have done a lot of work.In January, 2021, 106 amendment approved countries, conform to the statutory number, amendment goes into effect.