An image guided surgery apparatus and system are provided. The image guided surgery system includes an image capturing system, an image scanner, a navigator, a surgical catheter and a surgical probe. The image capturing system has an elongated and flexible working tube for capturing a surface image, a structure image or a dynamic structure image of a tissue during the surgical catheter moving forward to the surgical part, thus determining the type and the structure of the tissue in the front-end of the surgical catheter. Therefore, whether a moving path of the surgical catheter is at the correct position can be confirmed for reaching a correct surgical site. The surgical catheter assists the surgical probe directly reaching the optimal surgical site for performing a precise positioning surgery.
