Aiming at the problem of low-frequency line spectrum vibration of the superstructure of the offshore platform caused by the propeller excitation, a distributed dynamic vibration absorption study of the offshore platform is carried out based on the theory of dynamic vibration absorption. A four-degree-of-freedom master-slave coupling dynamic vibration absorption model is established, and the variation of the vibration absorption performance of the dynamic vibration absorber with the layout position is analyzed. The influence of the number and the layout scheme of the distributed dynamic vibration absorbers on the vibration reduction effect of the plate frame structure is studied. Taken an offshore platform as an example, the application research of the distributed dynamic vibration absorption is carried out to reduce the vibration response of the superstructure area of the offshore platform. The research shows that: when the total mass of the dynamic vibration absorber is unchanged, the layout of the vibration absorber is of great influence on the vibration reduction effect; when the mass distribution of the distributed dynamic vibration absorbers is reasonable, the vibration reduction effect is better than that of the single-point dynamic vibration absorber.