With the increasingly open social atmosphere, the same-sex couples are held a positive and friendly attitude. Whether the same-sex parents are eligible for "excellent parents", to take responsibility for the protection of children, always positive and negative views. Objectors believe that children should grow up in a normal family of "on man and one woman". If children are raised by the same-sex parents, will affect children's gender identity of self-construction, easy to make children sex confusion, and impeding personality development of the child. On the contrary, assentients think that the so-called "excellent parents", whether limited to "one man and one woman" composed of heterosexual families have question. Social existence of the same-sex marriage of the facts can't be denied. Shouldn't fall into the heterosexual hegemony in the whirlpool. There is no definite scientific evidence to prove that the same-sex marriage will have an adverse effect on children, and the same-sex parents can become "excellent parents" to prove children with the necessary growth. Children are raised by same-sex couples, may not be conductive to personality development of the child, nor in the best interests of the child. Therefore, this article to explore the sexual orientation of the parents and personality development of the child is necessary to develop the relationship. To take the literature analysis method for analyzing the relevant literature and the court ruling in order to clarify the parents who are responsible for the protection of childcare, whose sexual orientation tends to determine whether the child plays a key role in determining the best interests of the child. Whether the parents can provide a good growth environment for the development of children's sound personality of core, the parents of sexual orientation is not the key. It is expected to construct a gender-consciousness and gender-friendly environment that will help the same-sex marriage to be falsified and recognize that status of "excellent parents" of the same-sex parents.