A pedal simulator of the present invention is disclosed. According to an aspect of the present invention, the pedal simulator, which is connected with a master cylinder and receives pedal pressure of the driver and configured to provide a sense of a pedal for a driver, includes: a simulation chamber having one end connected with the master cylinder and the other end provided in the simulator block closed by a damping housing, and configured to store oil; a check valve pressurized by the piston, provided in the simulation chamber to be slideable, and slid; an orifice formed in the simulator block and allowing a flow of oil in the simulation chamber by the sliding check valve; and an accumulator configured to store the oil discharged through the orifice.