This creation system provides a kind of small movement, and it includes ontology, two swing mechanisms, two driving members, two Massage Departments and power sources. Two swing mechanisms set up separately on the two sides of what ontology, and each swing mechanism includes eccentric wheel and sliding block, sliding block connecting eccentric wheel. Two driving members set up separately on the two sides of what body interior. Each Massage Department is rotationally arranged on what driving member. Power source sets what body interior, connect each swing mechanism and each driving member, it drives each swing mechanism axially to make crankmotion towards at least two and each driving member court is driven to rotate clockwise or counterclockwise, ontology is set to make crankmotion with each swing mechanism, each Massage Department is interlocked by each driving member and makees crankmotion with the shaking of ontology.本創作係提供一種小機芯，其包含本體、二擺動機構、二傳動件、二按摩部以及動力源。二擺動機構分設於本體之兩側面上，各擺動機構包含偏心輪以及滑塊，滑塊連接偏心輪。二傳動件分設於本體內部之兩側上。各按摩部可轉動地套設於傳動件上。動力源設於本體內部，連接各擺動機構以及各傳動件，帶動各擺動機構朝至少二軸向作往復旋轉運動以及帶動各傳動件朝順時針或逆時針轉動，使本體隨各擺動機構作往復旋轉運動，各按摩部受到各傳動件連動且隨本體之晃動而作往復旋轉運動。
