It can be printed or handwritten, as long as the employee personally signs and confirms the specific date of submitting the resignation letter. Legal basis: Article 38 of People's Republic of China (PRC) Labor Contract Law. Under any of the following circumstances, the laborer may terminate the labor contract: (1) failing to provide labor protection or working conditions as agreed in the labor contract; (2) Failing to pay labor remuneration in full and on time; (3) Failing to pay social insurance premiums for laborers according to law; (4) The rules and regulations of the employing unit violate the provisions of laws and regulations and damage the rights and interests of workers; (5) The labor contract is invalid due to the circumstances specified in the first paragraph of Article 26 of this Law; (6) Other circumstances under which the laborer can terminate the labor contract as stipulated by laws and administrative regulations.