According to the legal definitions of land transfer under shareholding cooperative systems, rural groups, collective rights of members, and this paper discloses the necessity of protecting the collective rights of members. In terms of qualification definition of members, rights of fetus, married daughters and sons in law cannot be guaranteed. In terms of rights protection, partial rights cannot be assured, power of personal stake in the collective members is imperfect which results in inadequate, unbalanced, shaky and unpunctuated benefits. Based on objective and subjective causes, the democratic management rights of members in land transfer process have been weakened or even deprived, the protection of the basic life is hard to realize. The paper proposes that it is necessary to build the social protection mechanisms of rural land shareholding cooperative systems. The first is to treat those members that own land, attending the shareholding cooperation but having not taken part in the land transfer procession as the protection objects. The second is in the procession of land transfer, making it clear the compensation standards of land transfer, establishing the intermediate agencies of land transfer and performing the collective economic organizing functions. The third is that the account capital of social protection is contributed together by personal member, the land users (shareholding cooperative companies) and government. The fourth is to pay more attention to the added value and safety management of capital operation.