The invention provides a whole plant water turbine speed regulation systems health state evaluation and optimization method. The whole plant water turbine speed regulation systems intelligent analysisplatform obtains characteristic parameters of all parts of the whole plant water turbine speed regulation systems through an industrial ethernet, the characteristic parameters of same components of different water turbine speed regulation systems in the whole plant are compared and calculated, a health state indexes of all the components of each set of water turbine speed regulation system are corrected, so that the health state of each set of water turbine speed regulation system can be evaluated more accurately and timely. The whole plant water turbine speed regulation systems intelligent analysis platform obtains information of water heads, active power, guide vane opening degrees and a vibration swing degree of whole plant water turbine generator sets through the industrial ethernet,a comprehensive characteristic curve of the water head, the active power, the guide vane opening degree and a electric operation limit of each water turbine generator set are founded through long-timeoperation data accumulation and analysis, and an ultra-limiting region of the vibration swing degree is identified, so as to optimize a power regulation and primary frequency modulation of the waterturbine speed regulation systems, thus the overload of the sets is avoided, meanwhile, the ultra-limiting region of the vibration swing degree is avoided.