The present invention discloses a low-density high-strength ceramsite proppant, and a method for manufacturing the same includes: pulverizing a raw material into a coarse powder and dry-grinding; adding fly ash, sodium bicarbonate, cryolite, kaolin, etc. into the coarse powder; Putting the resultant in a ball mill to perform ball milling for 30 minutes to 2 hours to obtain a mixed powder; mixing a tetrabutylammonium fluoride solution and a polyvinyl alcohol solution in a mass ratio of 1:7-1:15 to obtain a mixed slurry; mixing the mixed powder and the mixed slurry, and granulating the resultant to obtain particles; preparing a ceramsite blank by sintering the particles at a high temperature; and adding alumina powder into the ceramsite blank for grinding, and removing the powder.
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