Legal analysis: if you stamp first and then sign, the words will be superimposed on the chapter. Words can be changed, especially dates. Therefore, it is generally signed, dated and stamped first.

Legal basis: Article 16 of People's Republic of China (PRC) Labor Contract Law shall come into effect after the employer and the employee reach an agreement through consultation, and the text of the labor contract shall be signed or sealed by both the employer and the employee. The text of the labor contract is held by the employer and the employee respectively.