Abstract: With the foundation of reliability principle on hydraulic parts,it brings forward how to enhance the inhere and applicable reliability about these parts.It is the key for quality of the equipment to realize the parts reliability.

• 文摘:从液压元件可靠性设计的基本理论，提出了液压元件固有可靠性和使用可靠性设计途径，说明了液压元件的可靠性设计是提高液压设备可靠性的根本。