回复：请小白兔指教申请I-130的材料

So you are the USC spouse

1。我在中国出生，80年代的时候中国没有办法出生证。有没有办法用其他证明代替？
Your US citizenship/natualization certificate.

2。经济担保一定需要我吗？还是我父母也可以
You first. If you don't earn enough, your parents (USC or LPR) co-sponsor.

3。我有自己的公司，employment verification letter要怎么写？
if self-employed, use your income tax return.

4。上面的13-15，如果我父母可以做经济担保，是不是这些资料就是我父母的了？
if you don't have enough income. Yes, add theirs in I864a.

5。I864上面可以加上移民申请人自己， 需要他公司出employee verification letter吗？
only if still not enough after adding income from you, your parents.

6。I864上面也写“If you included the income of the intending immigrant who is your spouse, evidence that his/her income will continue fromt he current source after obtaining lawful permanent resident status must be provided.”因为他想申请I-765, 批准下来就换工作。这样子source of income肯定就变了，是不是就不能放他成income了？
no need to use this unless you and your parents don't have enough income.