如果140通过就可以延期H1B.

b. There are two ways to extend your H-1B beyond the six-year limit under AC-21:

i. If your I-140 is pending for more than 365 days at the time your H-1B reaches the six year limit, your H-1B can be extended for one year; or

ii. If your I-140 is approved before your H-1B reaches the six-year limit but you are not eligible to file an I-485 yet because your priority date is not current, your H-1B can be extended for 3-year increments until your EB-2 priority date is current and you are eligible to file an I-485 based on your approved NIW.