Legal analysis: according to the situation of different towns, the mayor level of each official department is different, and the official department is the most common. China's administrative levels are divided into five levels: national level, provincial and ministerial level, departmental level, county level and township level, and all levels are divided into deputies. The level of the central ministries and commissions is what we usually call "state, Ministry (province), department, department and branch". In addition to the national level, the other four levels are what we often call local four-level administrative divisions. Most towns and villages under the jurisdiction of most counties in China are regular-level towns and villages, and there are few sub-level towns and villages. However, with the deepening of the reform of the national administrative division system, many large towns and villages with official-level towns have been upgraded to deputy-level towns, and most of them are located within the jurisdiction of municipalities directly under the central government and sub-provincial cities.
Legal basis: Article 3 of the Constitution of People's Republic of China (PRC). People's Republic of China (PRC)'s state organs practice the principle of democratic centralism. The National People's Congress and local people's congresses at various levels are democratically elected, accountable to the people and supervised by the people. The state administrative organs, supervisory organs, judicial organs and procuratorial organs are all produced by the National People's Congress, responsible to and supervised by the National People's Congress. The division of functions and powers between central and local state organs follows the principle of giving full play to local initiative and enthusiasm under the unified leadership of the central authorities.