This composite expanding and contracting member manufacturing method includes a step of introducing a composite sheet (15) into a first processing unit (11) and performing a first process, and then introducing the composite sheet (15) into a second processing unit (12) and performing a second process, the first and second processes been performed while the composite sheet (15) is being conveyed. The first processing unit (11) is provided with an anvil roll (13) and a first processing roll, and the second processing unit (12) is provided with an anvil roll (14) and a second processing roll. The composite sheet (15) is conveyed in such a way that a first sheet material (1) faces the first processing roll in the first processing unit (11) and a second sheet material (2) faces the second processing roll in the second processing unit (12). In the composite sheet (15), a low expansion and contraction region (6) is formed either by joining the first and second sheet materials (1, 2) and then cutting a resilient member (4), or by cutting the resilient member (4) and then joining the first and second sheet materials (1, 2).本發明之複合伸縮構件之製造方法具有如下步驟，即，將複合片(15)一面搬送一面導入至第1加工部(11)進行第1加工，繼而導入至第2加工部(12)進行第2加工。第1加工部(11)具備砧輥(13)及第1加工輥，第2加工部(12)具備砧輥(14)及第2加工輥。複合片(15)以於第1加工部(11)中第1片材(1)與第1加工輥對向，且於第2加工部(12)中第2片材(2)與第2加工輥對向之方式被搬送。複合片(15)係藉由先將第1及第2片材(1、2)接合然後將彈性構件(4)切斷，或者先將彈性構件(4)切斷然後將第1及第2片材(1、2)接合，而形成低伸縮區域(6)。
