A:https://chinabyteaching.com/teaching-english-in-china/am-i-eligible-to-teach-in-china/ 6. Age requirements There is no single nationwide age rule applied consistently across all of China. In reality, most Z Visa approvals tend to cap somewhere around the mid-50s, but how strictly this is applied varies by province and employer. Age is often more of a hiring preference than a legal rule. Kindergartens, for example, may prefer younger teachers, while international schools often view age as experience and are more flexible. Ironically, even ‘young’ and ‘older’ are subjective – some Chinese employers might deem 40 to be ‘too old’ to teach kindergartners! If you are at all concerned about age, it is best to raise this early with recruiters to avoid wasting time with the wrong job applications. At the end of the day, you should strive to find a school that appreciates your experience. https://www.gooverseas.com/blog/guide-teaching-english-china Requirements to teach in ChinaTeaching English jobs are competitive in China, and to teach legally in China, you'll have to meet a few qualifications:English proficiency: Passport from one of seven "native speaker" countries (US, UK, Canada, Australia, New Zealand, Ireland, and South Africa). If you aren’t a native speaker, you’ll need to be a certified teacher in your home country with proof of your English proficiency (e.g. IELTS or TOEFL).Bachelor’s degreeCriminal background checkTeaching certificate: TEFL, CELTA, or teaching license from your home country.Authenticated documents: Bachelor's degrees, criminal background checks, and teaching certificates will need to be legalized and authenticated. This helps international employers recognize their authenticity. Be under the Chinese retirement age of 55 (women) or 60 (men) years old The qualifications for teaching abroad in China are strict, and teaching in China on a tourist or business visa is illegal and can lead to fines or deportation.   -- icnif77