The present invention is mainly composed of a bed body, a sliding group, and a driving group, and the second rotating portion and the third rotating portion of the speed reducing base are respectively connected to the first running portion and the second running portion of the eccentric shaft seat, compared with the Knowing the problem of technical oscillating vibration, the present invention is capable of counteracting sloshing to achieve a balanced state, so that the sliding group can be more stably reciprocated horizontally in the axial direction, thereby satisfying the needs of various parts of the human body, and is quite ergonomic. In addition to the original effect of promoting blood circulation, the purpose of improving safety, health and comfort is to prevent users from being injured by excessive shaking.本新型主要是由床體、滑動組、及驅動組所組成,透過減速座的第二轉動部與第三轉動部分別連接偏心軸座的第一運轉部與第二運轉部,相較於習知技術搖擺振動的問題,本新型是以能夠抵銷晃動以達平衡的狀態,使滑動組沿軸向水平往復位移時,能更加穩固,藉此能滿足人體各部位的需求,相當符合人體工學,除了原本具備促進血液循環的功效,進而提高安全、健康和舒適性的目的,避免使用者受到過大的搖晃衝擊而受傷。