Trust Management models are often used in distributed environment to improve the reliability of the system, these models have proven to be an important aspect of distributed system to decide whether the node is reliable or not. Trust models have been proposed in cloud SaaS, grid computing and for different systems in distributed environment. Proposed Trust Management algorithm solved the problem of reliability in Cloud IaaS environment. Now with the help of proposed trust model one can decide whether host is trust worthy or not, to provide more reliable services to the user by allocating trusted host to them.