In this paper, development and evaluation of a haptic device for a brain surgery simulator are presented. The haptic device enables to simulate medical operations with both hands at the area near the tip of two surgical instruments. In this study, a module for micro scissors was developed and evaluated by force display experiment. Furthermore, force display performance of the haptic device was evaluated by push simulation using a cube model of brain tissue. The results clarify the issues of the module and the haptic device.