During the process of the absorption and innovation of new technology, EEB has formed comprehensive industrial advantages of normal speed and high speed railway traction power supply system, integrated with design, research, manufacturing, installation, and operation & maintenance; fully grasped high speed electrified railway’s design & construction technology system and integration management system; comprehensively mastered development & manufacture technologies of key products of high speed railway traction power system; built a technical platform of high speed railway traction power system with complete intellectual property rights in China; accumulated abundant experience and technology for promoting reconstruction of large scale existing electrified railway with high quality and efficiency; grasped professional technology of railway communication, signaling and disaster prevention systems as well as constructional technology of subgrade, bridge, tunnel, track work etc.