There is no need to write the contact number of the superior in the visa resume. According to the relevant information, the visa resume does not need to write anyone's contact information, but the work resume needs to write the contact number of the superior, leaving the phone number of the superior and HR, also known as the contact information of the referee. These referees judge the authenticity of some information of candidates, and most of them are candidates' direct leaders, department colleagues and personnel colleagues.