A cutting method of a tap carrier package of a liquid crystal display. The cutting method cuts a film comprising a first straight layout along a predetermined direction on a wiring layer comprising a second straight layout along the predetermined direction and a oblique layout, the method comprises the following steps. First, a breach is formed by cutting a part of the first straight layout on the film. Finally, the film is fastened on the wiring layer. Thus, the remaining first straight layout is only connected to the straight layout and the oblique layout is exposed through the breach.