The invention discloses a thrust bearing resonant converter for marine. The converter comprises a thrust bearing and a resonant converter which is connected with the thrust bearing; a front end cover of the thrust bearing is internally provided with a plurality of plunger chambers uniformly along the circumference; each plunger chamber is internally provided with a plunger; one end of the plungeris contacted with a front thrust block of the thrust bearing, and the other end of the plunger forms a clearance with the corresponding plunger chamber; the clearances of all plunger chambers are communicated mutually and are filled with hydraulic oil, and a balance oil cylinder is formed; the resonant converter consists of a hydraulic pipe and an oil cylinder which are connected mutually; the balance oil cylinder is connected with the hydraulic pipe through an interface, and is communicated with the oil cylinder of the resonant converter; and the vertical load of a propulsion shafting is transferred to each plunger which is contacted with the propulsion shafting through the front thrust block, each plunger is pushed to move and the load is acted in the balance oil cylinder and the hydraulic oil in the resonant converter, thus vibration attenuation is realized. According to the invention, the assembling problem between the resonant converter and the thrust bearing for marine is solved, and the resonant converter has the advantages of flexibility in mounting, high safety and small volume, and is convenient to control in the practical operation.