Based on the circular tube free rollover, a new type of energy-absorbing device was proposed. The inversion processes of the proposed tubes under axial compression had been simulated by using explicit finite element method and the energy absorption characteristics during the processes had also been investigated. The new proposed energy-absorbing device significantly had a higher energy-absorbing performance when compared with traditional circular tubes. Without the requirement of clamps, this device can hold a long effective crush distance and take an excellent energy-absorbing performance, which overcomes the drawbacks of traditional tubes.