Piston of fluid pressure cylinder

The invention relates to a piston of a fluid pressure cylinder. Provided is a technique capable of improving the durability of a piston in a fluid pressure cylinder. This piston for a fluid pressure cylinder is provided with: a piston body disposed in a cylinder chamber so as to be movable along a cylinder tube; and a piston rod which is connected to the piston body, extends in the axial direction of the piston, and is inserted into an insertion hole formed in the rod cover, a piston end portion, which faces the head cover, of the two end portions in the axial direction of the piston includes a protruding portion protruding in the axial direction of the piston, and the protruding portion is formed so that the width decreases from the base end portion toward the top portion of the protruding portion. The top of the convex portion is located at the topmost end of the piston in the axial direction of the piston and is formed at a position through which the central axis of the piston passes. 本发明涉及流体压力缸的活塞。提供一种能在流