Abstract:The stress transfer depth of the prestressed cable,the concept of free section,safety factor of cut slope,the so-called rock crust created by cluster anchoring and supplemental tensioning in slope reinforcement are discussed based on experiences of design,examination and construction of near twenty cases. The slope excavation method with deformation control is introduced,whose main factors include safety monitoring,advance support,cutting in layers and sections,timely slope surface support,intensified slope toe support and management of construction technique. The stress in grout stem in borehole is emphatically analyzed,and this issue is reduced to the problem of stabilization of compressed rod. The new structure of prestressed anchor beam is proposed to increase the bearing capacity of prestressed cable.