Learned the traditional mortise and tenon craft carpentry craft, with such a craft can earn more than the average carpenter?

If you learn it well, you will definitely earn more than carpentry. If you really can do, then at least double more earn, you can go to some ancient furniture restoration place to do.

Tenon and mortise construction is a kind of concave and convex treatment of joints used on the two components connected in solid wood furniture. The protruding part is called tenon (or mortise and tenon); the concave part is called mortise (or mortise and tenon groove). This form has reached a high level of skill in traditional Chinese furniture, and is also commonly found in other wood, bamboo, and stone objects. The practice of "mortise and tenon" to connect various parts of Chinese furniture is the main structural method of furniture modeling. A variety of mortise and tenon practice, the scope of application is different, but they are in each piece of furniture has the shape of the structure of the "joint" role.