We should learn more about Hegel's contract notion because there are many valuable thoughts in it.The contract is,according to Hegel,the unanimous agreement made between equal subjects on an all-pleasing foundation.The contract is a full recognition of human freedom and equality.The contract frees people from the manacles of class privilege.The contract brings into full play individuals' talents.The contract promotes individuality and fills society with vigor,thus boosting historical progress.However,contract equality has two dimensions: formal equality and essential equality.We have to be cautious and prevent the likely inequality of contract concealed in formal equality,which might be caused by contract inability and the like.We should seek not only the formal equality of the contract but also its essential equality,and the essential equality of society.