[Objective] Exploring key technical measures for ecological restoration technology of borrow pits in Tibetan plateau protected areas in order to provide references for ecological restoration of slopes in plateau protected areas.[Methods] Taking the No.4 borrow pit slope of National Highway No.569 Manda to Datong Expressway in Xianmi National Forest Park Nature Reserve as an example

and based on the local climate characteristics

soil and vegetation status of borrow pit slope

the key technical measures for the ecological restoration of earth borrowing pits are introduced in detail

including cut slope

drains at the top of slopes

and stream trough. Meanwhile

the technological key points of borrowed soil greening and borrowed soil spraying methods and the choice of Elymus dahuricus

Poa crymophila

Puccinellia tenuiflora

rapeseed and peaas mix proportion.[Results] The results of 45 days after construction showed that the drainage system has a good drainage effect

there is no ponding water at the bottom of the slope

the slope remains intact and no soil and water loss occurred. The vegetation coverage rate on the slope with the method of borrowed soil greening is more than 60%

and the vegetation coverage on the slope with the method of borrowed soil sraying reaches more than 70%.[Conclusion] The ecological restoration effect of the borrow pit slope meets the requirements. We should make full use of local resources to maximize ecological and economic benefits when carrying out ecological rehabilitation.