EC2 Instance Status in AWS is a tool used to monitor the health and performance of Amazon Elastic Compute Cloud (EC2) instances. It provides an up-to-date view of the current state of all running EC2 instances, including details such as their instance type, operating system, IP address, availability zone, and other associated metrics. EC2 Instance Status can be accessed through the AWS Management Console or via Amazon's API. By monitoring these metrics in real time, users can ensure that their applications are running smoothly and that resources are being allocated efficiently. Additionally, this information can be used to troubleshoot issues with EC2 instances quickly and efficiently.