how to let Child interface rule input value transmit to parent interface?

You'd have the value in the parent interface as a local variable or rule input and pass it through to the child interface through a rule input.

I want the child pass to the parent, if i fill value in check box, then how can i let parent interface get it?

I'm not sure how else to explain this. The checkbox in the child would save to a rule input which would then pass to the parent. This is how every interface parent and child relationship works.

how it can pass to parent? 

Let's say this is your child interface:

If you had your parent like this:

a!localVariables(
  local!checkbox,
  rule!TEST_Child(
    checkboxValue: local!checkbox
  )
)

Then when you changed your checkbox selections it would save into the local!checkbox local variable in the parent interface.

You are so helpful!