Staking means, under the PoS consensus mechanism, cryptocurrency holders stake their assets in order to obtain voting power and rewards. The advantages of Staking include, firstly, it can realize asset preservation and appreciation and resist against inflation caused by the additional issuance of coins; Secondly, the holders can join block validation to maintain the stable operation of the public chain network; Thirdly, they can also take part in ecological governance of the public chain with negligible costs by voting power.