泰国驻华使馆认证一般需要7个工作日左右。

1、需一式两份，使馆只收一份认证费。

It usually takes about 7 working days to get the certificate of The Thai Embassy in China.

1. In duplicate. The embassy will only charge one certification fee.

 2、需泰文或英语译文。

2. Thai or English translation is required.

 3、商业单据须做成商业证明书形式。

3. Commercial documents must be in the form of commercial certificate.

 4、山东省出具的文书送驻青岛总领馆认证。

4. Documents issued by Shandong Province shall be sent to the Consulate General in Qingdao for authentication.