所需资料 Requirments:

1.A passport valid for travel to the United States with a validity date at least six 

months beyond your intended period of stay in the United States 

可前往美国旅行的有效护照，其有效期至少比您预计在美国停留的期限晚六个月

2.Current proof of income, tax payments, property or business ownership, or assets. 

当前收入，纳税，财产或企业所有权或资产证明

3.行程计划安排 Travel Itinerary 

4.在职证明 Certificate of Employments