This is a Baseball Game Simulation with Robot on V-REP. The whole system is comprised of three components, Pitch, Hit, and Run. The Pitcher is designed with parameterized angles and velocity of the ball with reduced gravitational acceleration parameter for better trajectory. The Batter is implemented with inverse kinematics and proximity senser to sense and hit the ball with its end-effector. The Fielder is programmed with chasing algorithm and blob detection function to continuous feedback the ball center coordinates in X-Y plane.