房地产交易最重要的环节——房地产交易合同是房产流转关系中的中介和桥梁,是实现交易的形式,与交易安全有着极为密切的因果关系。商品房买卖合同的效力不仅关系到交易关系的稳定和当事人合法权益的保护,而且关系到商品房市场的健康发展。 Real estate transactions the most important part of the real estate transaction contract is the intermediary and bridge in the real estate transfer relationship is to achieve the form of transactions, and transaction security has a very close causal relationship. The effectiveness of the contract of sale and purchase of commercial houses not only concerns the stability of the transaction relationship and the protection of the legitimate rights and interests of the parties, but also the healthy development of the commercial housing market.