Google reCAPTCHA can be enabled in Odoo Website Forms by obtaining a Site Key and Secret Key from Google and adding them to the website settings. Odoo provides a dedicated configuration section where administrators can activate reCAPTCHA protection for forms. After successful setup, the system verifies user interactions before form submission. This security feature helps prevent spam, automated bot activity, and fraudulent inquiries. Odoo reCAPTCHA implementation enhances website security, improves form reliability, and ensures that genuine customer submissions reach the business without interruption.