A mountainous area anti-swing transmission line tangent tower for glass fiber reinforced plastic V-shaped strings comprises a tower body, a ground wire support, an upper cross arm, a middle cross arm, a lower cross arm and the glass fiber reinforced plastic V-shaped strings. The ground wire support, the upper cross arm, the middle cross arm and the lower cross arm are arranged on the tower body. Each glass fiber reinforced plastic V-shaped string is composed of cylindrical glass fiber reinforced plastic insulating rods, a yoke plate and a suspension clamp. The upper ends of the glass fiber reinforced plastic V-shaped strings are connected with suspension wire hanging plates of the upper cross arm, the middle cross arm and the lower cross arm through Z-shaped hanging plates respectively. According to the mountainous area anti-swing transmission line tangent tower, the pressure resistance and the insulation performance of glass fiber reinforced plastic are combined with the stress features of the V-shaped strings, so that the condition that conventional V-shaped insulator strings are pressed and then fall or are damaged is avoided, windage yaw of wires on a tower head is effectively limited, and the electrical gap distance is guaranteed.