To　figure　out　the　steady-state　responses　of　a　new　water　hydraulic　servo　valve　when　a　specific　displacement　is　inputted　from　the　actuator,　an　analysis　has　been　conducted　on　the　hydraulic　bridge　of　the　servo　valve　with　annular　clearance　between　sleeve　and　spool　land　as　its　first　hydraulic　resistance.　Results　show　that　the　pressure　difference　of　spool　ends　has　a　nearly　linear　relationship　with　the　flapper　displacement.　Through　the　study　of　motion　characteristics　and　force　status　of　feedback　rod,　the　steady　state　force　equilibrium　equation　is　established.　Considering　overall　forces　and　constraint　conditions　on　the　components　consisting　of　feedback　rod　and　spool,　the　steady　state　finite　element　model　is　subsequently　established.　Steady-state　responses　of　the　servo　valve　with　different　feedback　rods　matched　can　be　obtained　when　the　input　displacement　from　the　actuator　has　been　given　to　the　software　calculation.　A　suitable　feedback　rod　is　selected　to　meet　the　design　requirements.　Finally,　a　discussion　focused　on　the　simplified　model　which　is　used　in　finite　element　software　calculation　has　been　carried　out.　Results　show　that　the　finite　element　analytic　solution　equals　the　software　solution　well.