The invention discloses a power grid black-start method with participation of regional small hydropower stations and new energy hybrid micro-grids. A process of the method includes selecting black-start micro-grids; selecting the optimal starting paths; starting the micro-grids; charging lines; transmitting power to loads; outwardly expanding and starting started power sources; interconnecting the micro-grids with systems. Energy storage systems in the micro-grids are used as black-start power sources when the micro-grids are started and run in V-F modes, so that voltages can be assuredly generated for buses of the micro-grids; present voltage frequency stability of the micro-grids can be guaranteed by means of invoking active power and reactive power which are outputted by the energy storage systems when the small hydropower stations and photovoltaic systems in the micro-grids are started. The power grid black-start method has the advantages that merits of simple auxiliary equipment, low auxiliary power consumption, high starting speeds and the like of the micro-grids are sufficiently utilized by the power grid black-start method, the micro-grids are used as the black-start power sources for power grids, accordingly, power failure durations of the power grids can be shortened, and normal running of the power grids can be restored as soon as possible; the power grid black-start method is applicable to black-start of the regional small hydropower stations and the new energy hybrid micro-grids.