On　the　basis　of　Plaxis　finite　element　program,　the　support　of　a　foundation　pit　in　soft　soils　is　simulated　to　analyze　the　conditions　when　there　are　timber　piles　or　no　timber　piles　in　the　foundation　pit.　The　results　show　that　the　timber　piles　play　an　obvious　role　in　controlling　the　horizontal　displacement　of　soft　soil　layer　and　have　certain　effect　of　controlling　the　vertical　displacement.　From　the　plastic　zone,　there　is　certain　trend　of　continuity　without　timber　piles.　When　there　are　timber　piles,　the　plastic　zone　can　not　extend　to　the　slope　crest.　Comparison　between　two　conditions　with　and　without　timber　piles　indicates　that　the　safety　factor　of　the　former　is　larger　than　that　of　the　latter.　The　timber　piles　are　characterized　by　good　support　effect,　low　cost,　short　construction　period,　convenient　construction　and　so　on.　They　have　great　feasibility　and　superiority　when　combining　with　the　shotcrete　bolts　in　supports　of　foundation　pits　in　soft　soils.