Abstract: In archery, we need the accuracy in aiming and calculating the velocity of the arrow because of there is an archery paradox phenomenon. Archer’s paradox can make an arrow flight to target with an aim is not within an actual target but rather in left or right from the actual target. Because of archer’s paradox, each archer must consider speeding a velocity of an arrow. In this study, we will review some of the methods which used to measure the speed of an arrow.