The control strategies, methods and characteristics for electro-hydraulic power steering were surveyed. It was discussed and summarized that the conventional electro-hydraulic power steering could improve driver's high speed road feel and vehicle's dynamics. Combining technology of electric motor drive with hydraulic servo, electric powered hydraulic power technology has the characteristics of improvement on driver's road feel, energy economy and environmental protection. The integrated control can farther improve the electric powered hydraulic steering system's energy economy, dynamic response and self-adaptability, which presents one of the developing directions of electro-hydraulic power steering.