The metaverse is a shared virtual place where people can have engaging digital experiences. Its decentralized and linked nature makes it difficult to scale and keep safe. In this study, we look at how blockchain technology and the consensus processes that go with it could be used to make the metaverse ecosystem more secure and able to grow. Blockchain is a distributed ledger that is both decentralized and transparent. It has important security features like being unable to be changed, being checked with cryptography, and being run without a single authority. With the help of blockchain technology, we can make the metaverse safer and protect users' personal information and virtual identities. In this study, different blockchain-based consensus methods, such as Proof of Work (PoW), Proof of Stake (PoS), and Practical Byzantine Fault Tolerance (PBFT), are compared and contrasted to make sure the metaverse is safe. These consensus methods provide safe, decentralized ways to check transactions, stop wasteful spending, and get everyone on the network to agree on something. Also studied are the limits of blockchain technology's ability to scale in the metaverse, as well as possible scaling options like sharding, sidechains, and off-chain protocols. These methods allow for parallel processing, boost throughput, and cut down on the time it takes to complete a transaction. Because of this, they make the eco-system of the metaverse work better and more smoothly. Combining quantitative analysis, simulations, and experiments, the study method is used to figure out how secure and scalable blockchain-based metaverse consensus methods are. Changes will be measured quantitatively by looking at key performance factors like the speed of transactions, the throughput of the network, and the amount of resources used.