Hi @huanghaiqing1 Welcome to the community.
You will need to share you configuration files if you want help, particularly filebeat.yml to start if you want help.
You have not Provided enough information for us to even guess at this point.
Other things you should provide is what version you're on?
What OS you've installed on
How did you install fileBeat? Package or tar.gz
Did you follow the quick start guide for filebeat?
Did you run setup and test config?
Add a little more information and maybe we can help