In google page-speed test it shows best opportunity to speed up is eliminate blocking resource. So is there anyone who can guide me to do this?
You can try this:
Merge js files.
Minify js files.
Merge CSS files.
Minify CSS files.
Optimise CSS delivery by enabling LoadCSS js library.
Minify the critical CSS.
Move JS to the bottom.
Identify critical CSS - ie. CSS that is needed to render AF content. Place critical CSS in head section.
Place all the other CSS at bottom of a page.