[Objective] Vegetation restoration and screening with suitable trees and grasses in power transmission projects were performed to provide scientific guidance to improve vegetation restoration success in power transmission and transformation projects, reduce soil erosion caused by the project, and reduce ecological restoration costs. This is particularly important to guarantee the green, high-quality and sustainable development of power grids. [Methods] Using on-site investigation, field observation, and indoor analysis, 26 planting observation points were set up to observe the growth of grass and tree taxa two and five years after planting. The observation indices mainly included grass taxa and their height, hay production, tree taxa and their height, branch number, and crown width. The entropy value method was used to sort and screen the suitability of the growth of the grass and tree taxa in the various vegetation sub-zones along the transmission and substation routes. [Results] According to the observations, six grass taxa (Agropyron ristatum, Achnathurum splendens, Melilotus suavcolen, Medicago sativa, Elymus sibiricus and Elymus dahuricus) and six tree taxa (Tamarix hohenackeri, Caragana korshinskii, Hippophae rhamnoides, Haloxylon aphyllum, Sabina vulgaris, and Populus euphratica) were screened for the suitability evaluation. The results showed that in the broadleaf-deciduous mixed zone of the Qinling Mountains, A. splendens, M. sativa, and C. korshinskii ranked No. 1. In the desert Gobi zone of the West Hebei Corridor, M. suavcolen (No. 2) and H. aphyllum (No. 1) ranked the highest. In the oasis plain zone of the Hexi Corridor, A. ristatum (No. 2) and H. rhamnoides subsp. sinensis (No. 1) ranked the highest. In the desert grassland zone of the Hexi Corridor, E. sibiricus (No. 2), T. hohenackeri (No. 1) and P. euphratica (No. 1) ranked the highest. In the desert steppe zone of the Loess Plateau, E. dahuricus, T. hohenacke, C. korshinskii, H. aphyllum, and S. vulgaris were the most highly ranked species, and they were all ranked No. 2. In the dry steppe zone of the Loess Plateau, A. splendens (No. 2) and S. vulgaris ranked No. 1. [Conclusion] Selecting suitable tree and grass taxa for vegetation restoration in each vegetation zone along the transmission line should be adapted to local conditions, taking into account the suitability for growth and ecological function. It is recommended to prioritize selecting native species. For example, in the dry grassland area of the Loess Plateau, it is preferable to prioritize planting water with A. splendens, H. rhamnoides and S. vulgaris.