Aim to requirement of traction locomotive for passenger transportation between lines, locomotive bogie technology schemeof A-1-A type elastic suspension with individual brake axis driving-braking unit was presented. With quality allocation analysis, tractioncalculation and dynamic analysis, the scheme was proved satisfy 17 t axis weight, head-end push-pull 14 cars and max speed 250 km/soperation requirement, dynamic of which satisfied requirement of existing and high-speed passenger dedicated lines with wheeltrack actingforce at 210 km/h speed equal to CRH2 EMUs at 210 km/h speed.