Freezing sperms and eggs is one of the contemporary jurisprudential Issues. Therefore knowing its rules in Islamic jurisprudence requires searching for similar cases in the resources of Islamic Jurisprudence and practicing analogy where, in original case, used as a criterion for the new one. This paper is an endeavor to find out the jurisprudential stand of the cases where human sperms and eggs are frozen, and to which level this is compatible with Islamic shari’ah and its rules, particularly if fertilization is used for the husband and his wife (legal marriage), and if the aim of this process is to help the husband and the wife to give birth at the time they wish to, or at the time of elevating the preventive reason which was at the time of freezing. This paper concluded that the ruling of freezing the sperms and eggs is based on the reason which lead to that process; as there are reasons for which the freezing becomes lawful and there are ones for which the freezing becomes forbidden. This maxim in addition to some particular boundaries and conditions would rule the issue of freezing.