Due to the different lengths between units, the stress state of each unit in the pressure dispersed prestressed anchor cable varies under the same tensioning force. In addition, due to factors such as rock deformation (anchor head displacement) in the compression zone and tensioning equipment, stress differences are also prone to occur in each anchor cable unit compared to the tension type anchor cable. When the difference is significant, it is easy to cause individual unit stress to exceed the limit or fail, affecting anchoring efficiency and solid safety. Therefore, exploring scientific tensioning techniques based on the characteristics of slope rock mass and tensioning equipment conditions during construction is an important link in the construction of pressure dispersed prestressed anchor cables. The article takes the tensioning construction of pressure dispersed anchor cables on a certain highway in Shandong Province as an example, and proposes a two-stage tensioning process method of pressure dispersed anchor cables, which involves differential load tensioning followed by overload tensioning, by analyzing the unit stress state of several tensioning methods of pressure dispersed anchor cables and the inspection results of the K14+600~950 slope engineering of the Qingdao section of the Tongsan Expressway in Shandong. Provide certain reference experience for similar projects.