The present invention discloses a sea floating module that is convenient for assembly, including floating platforms, which are fixed on the outside of the floating platform with a nested block.In the fixed block, the inner side of the assembly block is fixed with waterproof fillers, which are set with a nested slot in the inside of the nested block.By setting up nested blocks, telescopic springs, fixed blocks, waterproof fillers, nested tanks, rotating buttons, nested fixed blocks, nested holes and inner slots, nested nested nested in the inside of the nested blockInside the groove, pass the rotating button to control the retractable spring and fixed blocks through the nested hole, and then rotate the button to fix the fixed block in the inner slot, so that the telescopic spring cannot shrinkInside, it is convenient for staff to assemble and stitch the floating platform, and save a lot of manpower and material resources and financial resources, and improve work efficiency.