The invention relates to engineering fields such as ocean, civil engineering, hydropower, wind power, energy, meteorology and climate. The ocean current energy-gathering hydropower station includes an artificially formed energy-gathering flow channel (1), artificial energy-gathering high-speed fluid (20), and energy-gathering fluid power generation equipment (10); an artificial energy-gathering high-speed Fluid (20); the energy-gathering fluid power generation equipment (20) is arranged in the energy-gathering flow channel (1) or the artificial energy-gathering high-speed fluid (20); the artificial energy-gathering high-speed fluid (20) passes through and flows through the energy-gathering fluid to generate electricity The equipment (10); the energy-gathering channel (1) consists of one of the following artificial retaining structures, artificial flow gorge, land channel, artificial coast, artificial seabed, artificial trench, ocean tunnel, ocean pipeline , cable dam (9); cable dam (9) includes the following structural forms, cable buoyancy dam, cable pillar dam, cable airbag dam; energy-gathering flow channel (1) includes the following structural forms, land energy-gathering , cable dam energy-concentrating waterway), Lulian cable dam energy-concentrating waterway, pipeline energy-concentrating waterway, trench energy-concentrating waterway, cable dam energy-concentrating airway.