I signed it to prove that it was submitted by the employees themselves. According to the inquiry of China Travel Service. Com, when new employees fill in the application registration form, employment registration form, and submit copies of academic qualifications and qualification certificates, they all have their own signatures, which prove that they are submitted by employees themselves. It has effective legal effect, indicating that it understands and recognizes the meaning of what it has written, and admits to being responsible for what it has written. Therefore, the signature of the new employee is his signature to prove that it was submitted by the employee himself.