The present invention provides a layout of a semiconductor transistor device including a first and a second active area, a first and a second gate, and a metal line. The first active and the second active area are extended along a first direction. The first gate and the second gate are extended along a second direction and crossed the first active area, to define two transistors. The two transistors are electrically connected with each other through a conductive layer. The metal line is disposed on the conductive layer and is electrically connected the two transistors respectively.