To　solve　the　problems,　such　as　large　pressure　drop　and　high　energy-consuming　in　the　flow　channels　in　the　multi-way　valve　which　centralizes　control　on　multi-actuator,　and　the　motor　for　right　travel　is　not　sensitive　enough　etc,　the　hydraulic　oil　flow　in　the　channel　of　the　valve　was　analyzed　and　the　effect　of　the　channel　structure　on　the　minor　pressure　drop　was　clarified.　In　doing　so,　the　geometry　model　of　the　right　travel　link　of　the　multi-way　valve　in　an　excavator　was　built　by　using　Pro/E　and　the　turbulent　flow　in　the　model　was　simulated　by　means　of　CFD　SIMPLEC　techniques.　The　results　showed　that　in　addition　to　the　pressure　drop　in　both　the　main　valve　port　and　the　conduit　between　the　inlet　and　the　check　valve,　there　is　a　significant　pressure　drop　in　the　passage　between　the　check　valve　port　and　the　outlet.　The　pressure　drop　is　proportional　to　the　axial　length　of　the　passage;　however,　it　is　less　affected　by　the　angle　of　the　passage.　The　drop　is　inversely　proportional　to　the　eddy　scale　and　the　number　of　vortex　cores.　The　pressure　drop　in　the　multi-way　valve　is　measured　as　well,　and　the　predicted　drop　is　consistent　with　the　experimental　observations,　suggesting　the　findings　based　on　the　analyzed　results　are　reliable.