Step 1.  Click the Customize and Control button  on the browser toolbar.

Step 2.  Select Settings.

Step 3.  Look in the "On startup" section from the left menu to select the desired action for when Chrome is started (or the home button is clicked - where applicable).

Set your startup homepage

In the "On Startup" area, click "Open a specific page or set of pages" radio button, then click "Set pages"., and enter the web address of the page you would like to use.

Add the home button to the browser toolbar - change "home" page

Under the "Appearance" section from the left menu, select the Show Home button. Below the Show Home button, select either a New Tab page or enter a custom web address to appear as your home page.