谢谢summit. 俺也在官网上找到了答案，确实通常是2年左右的时间，移民局发信要求提交801的通知。
Approximately three months before you are eligible to be assessed for a Partner (permanent) visa (subclass 801) (usually two years after application lodgement), you will receive a letter from the department asking you to provide further information relating to your application.
果然还是需要提交一些材料的，如下
Statutory Declaration Partner visa (applicant)
Statutory Declaration Partner visa (sponsor)
Checklist for Partner visa processing
Form 888 – Statutory declaration by a supporting witness relating to a partner visa application
Acknowledgement letter
Change of address, name or passport details
If you have changed address, name or passport details, you must notify us by calling the department or by completing Form 929 Change of address and/or passport details and posting it to the relevant Partner (Permanent) Processing Centre.
See:
Form 929 – Change of address and/or passport details
Form 1022 – Notification of changes in circumstances
