The present disclosure provides an annular anchor installing instrument and an annular anchor installing method, relating to the technical field of ocean engineering. The annular anchor installing instrument includes an installation tube, a pump body assembly, a lifting portion and an installation portion. One end of the installation tube is provided with a cover body, and the other end of the installation tube is configured to be an open end for cooperating with the top of the annular anchor. The pump body assembly is arranged on the cover body, and used to vacuum the interior of the installation tube. The lifting portion is arranged on the cover body, and used to connect with a hoist. The installation portions are removably arranged on the cover body, and used to connect with the hoist and the anchor chain of the annular anchor, respectively.

Disclosed is a support structure for an offshore wind power generator which is applicable to various seafloor terrains by increasing the number of seafloor penetration cylinders that are installed to be penetrated into and fixed to a seafloor ground and in which a vibration generation part and a seawater injection part assist the penetration of the seafloor penetration cylinders into the seafloor ground. The support structure for an offshore wind power generator includes: five seafloor penetration cylinders; covers provided above the five seafloor penetration cylinders, respectively; a drain part provided inside each of the covers; a seawater injection part provided in each of the five seafloor penetration cylinders to inject high-pressure seawater and align horizontal levels of the five seafloor penetration cylinders; and a supporting stand connected to the covers via connection parts.