Although the Internet is a virtual space, cyber love can never be an illusion.Meeting and falling in love with a person through the Internet is a popular way of communication in modern society. It deserves to be treated with respect.It is believed that the traditional love is human action, while online affection is based on an electronic medium.In other words, couples make use of the medium--the Internet to get to know each other.Though sharing the same basic function with the traditional marriage, cyber love still has a big advantage:extending greatly the association scope and the frame of reference, which is called the Marriage Circle in sociology.If the circle is too small, it restricts the evolution of human society. Therefore, the cyber affection has a huge positive effect.However, cyber love is a double-edged sword.On the one hand, it extends the space to make friends and gives people more opportunities of falling in love;on the other hand, the affection expressed through the virtual space can be false or sometimes insincere.Therefore, some people believe, compared with on-line affection, the traditional matchmakers are more trustworthy, and affection in real life is more stable.