Data or any kind of information is an important resource. Storing the data and securing it is one of the main concern of nowadays. Everyday, the industry is dealing with major privacy issues. The common user want a solution for these issues so that they can protect their data from third party or from any kind of data hacking; And this problem is solved with the involvement of cloud technology. Nowadays, everyone is familiar with cloud environment and cloud environment has also ruled over the market whether anyone from technology side or non-technology somewhere is storing their data on cloud; Because storing data into memory is also a very tedious task and even requires lots of maintenance. So, everyone is bound to store data in cloud storage to free from these burden. Blockchain has recently emerged as fascinating and innovative technology to face data integrity problems in the environment like cloud. In this literature, usability of Blockchain in cloud has been discussed and shown how it can be used to make cloud more secure. Major threats have came to an end after the participation of technology like blockchain.