我太懒了,刚刚查了一下,答案如下: H1B premium processing is a way to expedite processing your application. It costs additional $1,225( fee increased in Nov 2010 ) and the turnaround time is 15 calendar days. The goal of premium processing is that USCIS will have a decision of your case within 15 days. Applying for premium processing will not increase your chances for getting H1B approval notice. It just expedites the processing. So, do not be mislead by the fact that $1, 225 will increase chances.