The invention proposes to solve the problem of high cost and 
instability of using 
seawater to generate 
electricity, and provides a method for artificially manufacturing sea surface drop to guide 
seawater circulation to generate 
electricity and comprehensively utilizing 
seawater.  The method includes the main structural elements and auxiliary structural elements, and selects the coastal 
junction area suitable for negative excavation to build a sea blocking dam, so that the 
sea level and the artificial negative excavation underground reservoir form an altitude difference, and at the same time guide the seawater to 
impact the power generation under the underground reservoir  The unit generates 
electricity, and while pumping seawater for use onshore, it also uses 
wind power to support 
water pumping and seawater comprehensive utilization projects.  The invention can save 
land resources for seawater development, use seawater and 
wind power to generate electricity stably on a large scale around the 
clock, provide a large amount of power for national economic construction, promote the upgrading of seawater power generation and 
wind power generation equipment manufacturing industries, and provide a large amount of disposable clean seawater for the 
marine industry  , increase the added value of the 
marine industry, and create a new path in which 
clean energy economy and 
circular economy complement each other.