The issues related to fertilization in human and animal from past to now had been discussed and disputed by jurists. One of the questions which had been raised here and also answered in present study is that is it possible to buy and sell the sperm of human or animal for fertilization or not? About selling the sperm and semen of animal, the jurists of Hanafi, Maleki, Shafei and Hanbali religions know unlawful selling sperm of animals in each form and in addition to anecdotal evidence, they expressed lack of benefit, ignorance of the value of sales, lack of submission of the sales and lack of benefit for the owner of animal. Imami jurists mentioned the sale of male sperm in animal is execrable and the sale of sperm exited from the body of animal is unlawful and cited to anecdotal evidence. All Sunni religions know unlawful the sale, hire and donate the sperm by man to foreign woman and also donating or selling ovum to man by foreign woman. In this case, they cited anecdotal and rational evidences. Among Imami jurists, some attached to the abomination and some other attached to the license of exited sperm selling and its transfer to the body of foreign woman. To researcher dominating quote about selling sperm of animal is its license in all forms and about selling sperm of human is its sanctity.