In　this　paper,　a　design　of　simple　and　highly　hexapod　robot　is　described　and　a　method　of　step-climbing　is　proposed.　The　robot　structure　is　inspired　by　cockroach　and　it　has　six　eccentric　wheeled　legs　contacting　with　six　motors　through　hips　made　by　fiberglass.　Its　discretized　gaits　differ　from　wheeled　and　tracked　robots　who　are　good　at　flat　terrain　or　sloping　area　which　makes　it　obstacle　navigation　such　as　stairs　or　ditches　more　convenient.　Gait　comes　from　learning　of　six-legged　insects　(i.e.　locomotion　of　cockroach)　including　the　well-known　tripod　gait　and　the　way　of　climbing　in　the　outdoor　environment.　The　process　of　step-climbing　is　described　in　detail　and　we　designed　an　open-loop　control　of　the　gait　for　eccentric　wheel　type　legs　without　any　terrain　sensing　or　actively　controlled　adaptation.　In　our　experiment　the　eccentric　robot　performs　well　like　the　cockroaches　do　by　achieving　stable　and　robust　locomotion　traveling.　©　2018　IEEE.