Thank you so much, now it's working .

if you want to know what to import

try export create a dummy data in invoice then export all the data,

then you can know what field to import, usually the field is:

#HEADER

1.partner_id

2.account_id

3.date

4.force_period (if you want)

5.source document

6.due date

7.Journal

#LINES

1.product

2.name

3.account

4.qty

5.price unit