申请EB1B,你老板签字不行,需要部门的头和HR签字才行。你老板可以send一封email 表明他/她有意愿支持你申请绿卡。下面的email sample你可以作为参考: Hi XXX (Department chairman), XXX is a XXXX in my lab and has been working for me for XXX years with great accomplishment. For the purpose of his/her future career , I would like to support his/her green card application under EB1B (Outstanding Researcher/ Professor category). If possible, could you please ask XXX (department manager) to help XXXX with his/her green card application? Your support is greatly appreciated. XXXX (your boss's name)