The dispute of the same-sex marriage is brought by resisting of the religious group, and is become the main issue between the right of equality and religious liberty. The essay analyzes the relation between the right of equality and the freedom of religion. The essay also discusses two British Acts, which are “Civil Partnership Act 2004” and “Marriage (Same Sex Couples) Act 2013” respectively. The essay believes that the resolution of the same-sex marriage argument is to employ the model of ‘securing civil partnership, then same-sex marriage’.