The　urban　traffic　system　is　complex,　random,　dynamic　and　fuzzy.　As　to　the　existing　traffic　model　system,　there　are　many　factors　like　subject,　behavior　and　so　on,　which　are　not　considered.　Therefore,　there　are　many　limitations　of　the　findings.　The　experiment　traffic　engineering　theory　could　provide　the　effective　method　to　this　kind　of　complex　problem.　This　paper　puts　forward　the　frame　system　of　experiment　traffic　engineering　theory,　as　well　as　the　research　methods,　which　is　hoped　that　it　is　an　illumination　for　the　future　research.