In this study, we measure in detail the peristaltic locomotion pattern of the earthworm and expansion and contraction behavior of the arthromere. The location, cycle time, expansion and contraction time, and motionlessness time of the propagating wave on the earthworm are measured. It is found that the earthworm the same movement is not done by all parts, and the expansion and contraction speed is different according to the part. In addition about 3:1 compared with the length of the expansion and contraction part and the geostationary part of the earthworm. The location, cycle time, Spread time between of the propagating wave on the arthromere are measured. It is found, the delay system according to the analysis of the expansion and contraction operation of the arthromere. Movement mechanism model by peristalsis movement of an earthworm what evidence by inspection based on fundamental characteristic.