I googled this question and found the answer from here but in featured Google+ I didn't find the options that are mentioned in the above URL. I need my Google+ profile should be resulted in Google result for my keyword. How I can connect my Google+ profile and my website?
You first need to edit your profile (click on "Profile" in the sidebar) so it includes the website in question in your "Contributor to" section.
Then, you need to place a link on any page that you want the Google+ Authorship system to take effect that links to your Google+ profile.
<a href="https://plus.google.com/[Profile ID]" rel="author">My Google+ Profile</a>