The invention provides a power transmission tower with an anti-buckling support structure. The power transmission tower comprises a tower body (1), tower legs (2), a tower head (3) and cross arms (4). First anti-buckling support members (5) are arranged between the tower legs (2) and a tower foundation; the cross arms (4) are provided with second anti-buckling support members (6); the tower head (3) is provided with second anti-buckling support members (6); the tower body (1) is provided with second anti-buckling support members (6). The first anti-buckling support members (5) and the second anti-buckling support members (6) are assembled type anti-buckling support members. The power transmission tower has great wind-resistant and anti-seismic performance and is easy to maintain.