Hairs are essential to express individual characteristics. And, They can also express a person's emotion and body movement by means of their moving. In real life, when we change our favorite hair style, it is general that we refer photographs attached in magazines , tell an aesthetician our image of desirous hair style , and coordinate our hair style ourselves.

In real life That's how we select and decide the hair style, but problems which we don't know how the hair style we selected is really becoming for us and we want more detailed information of the hair style because of lack of information in 2D photograph are occur.

To solve these problems, we proposed simulator for cutting hairs which offers users interactive functions in 3D spaces. In our system, first, a human head mesh model is constructed and is generated the hair model on it. Our hair model is simulated hairs movement by simulating gravity and interaction between hair and hair. Also, Our system implements more interactive interface cutting hair based on real life