Probablly yes.

来源: 于 2015-03-23 09:08:50 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

You may file I-130 for your child (F2B) after you get the green card. Then, the I-130 can use the priority date (PD) of your I-140 as the I-130 PD.
See this link (read "Retention of Priority Date" part):
http://www.hooyou.com/ageout/childemp.htm