Node Mcu Esp12e master/slave communication

Is it possible to connect one esp12e as master and multiple client esp12e which is acts as client

Surely it is.

Can you give me a example code??

You’ll need to provide a lot more details about what you want first.

If you just want to set up communication between the two then there are already tons of tutorials on that all over the internet. I don’t think anyone here needs to rewrite that just special for you. You can read the ones that are already out there first and come back here if you have questions about them.