According　to　the　shortage　of　traditional　design　method　and　the　fact　that　the　effects　of　nonlinear　chaotic　vibration　on　human　health　were　ignored　in　the　research　of　compaction　system,　a　dynamic　design　method　basing　on　chaos　identification　was　proposed.　A　two　degree　of　freedom　dynamic　model　was　established　and　the　bifurcation　diagrams　were　described　for　vibratory　compaction　system.　The　dynamic　responses　of　the　system　were　analyzed　in　the　cases　of　three　different　soil　parameters　representing　the　early,　medium　and　later　stage　of　compacted　material.　Research　shows　that,　selecting　the　ratio　of　the　frame　quality　and　the　vibration　wheel　quality　in　the　range　from　0.85　to　1,　the　natural　frequency　of　frame　in　the　range　from　8　to　9.5　and　the　damping　ratio　in　the　range　from　0.195　to　0.215　can　weaken　the　nonlinear　characteristics　of　the　system　so　as　to　avoid　chaotic　vibration　as　much　as　possible.　©　2016,　The　Editorial　Board　of　Journal　of　System　Simulation.　All　right　reserved.