A contract is  formed  after  establishment  of  an effective  business  relationship and happening  overall  agreement  between  the  seller and the  buyer.  In the course of the electronic contract، some of legal and juridical issues raised.such way of liquidation that called the right if terminate or khiyar in phrase. Therefore that discussion contract system on base of electronic' of and its correction `depends on the widespread implementation of Islamic law and implementation right kiyar and as long as the in fracture of cyber space not corrected in the form of jurisprudence its inevitable that the problems   occurs.

One of the things that are unpopular  in E -Commerce law and with applications in the field of jurisprudence and civil law ,is issue of the cucumber is the topic and because space virtual contract comes, it may seem that way in the first place with the emergence of cucumbers in terms of substantive legal cucumber is different, but after the study we realize that it concluded that the only difference cucumber outlined in cyberspace cucumber and jurisprudence, in terms of form ,and without prejudice to the application of an impact on how to apply cucumber