As　potted　flower　becomes　more　and　more　important　in　people＇s　daily　life,　its　planting　area　and　sales　volume　have　been　largely　increased　in　recent　years.　For　saving　the　space　and　ensuring　the　flowering　rate,　it　is　a　key　link　to　transplant　the　flower　seedlings　from　small　pot　to　large　pot　in　the　growth　process　of　potted　flower.　However,　this　task　still　relies　on　the　manual　operation,　which　is　tiring　and　costly.　In　order　to　improve　the　mechanical　transplanting　of　the　potted　flower　seedling,　the　transplant　manipulator　of　potted　flower　was　designed　which　could　complete　the　transplanting　task　of　potted　anthurium　from　the　pot　of　110　mm　×　90　mm　to　the　one　of　170　mm　×　150　mm.　The　manipulator　adopted　the　form　that　it　grasped　the　stem　of　flower　seedlings　from　both　of　the　sides,　which　could　provide　sufficient　grasping　force.　Due　to　the　large　leaves　and　soft　substrates　the　flower　seedlings　had　in　transplanting　stage,　the　gathering　gripper　was　used　to　protect　the　leaves,　and　the　steel　needles　were　used　to　fix　the　flower　seedlings.　As　the　result,　it　not　only　improved　the　success　rate　of　transplanting,　but　also　avoided　the　injury　to　the　seedlings.　Based　on　the　actual　situation　of　potted　flower　seedling,　this　paper　analyzed　the　working　process　of　transplant　manipulator　for　potted　anthurium.　The　results　showed　that　the　insertion　angle　and　the　distance　from　steel　needle＇s　insertion　point　to　the　center　of　flower　seedling　could　be　adjusted,　and　these　two　major　factors　would　affect　the　performance　of　transplant　manipulator　for　potted　anthurium.　Moreover,　lifting　cylinder　pressure　was　another　major　factor.　Because　the　transplanting　effects　were　influenced　by　multiple　parameters,　the　of　combination　tests　of　quadratic　orthogonal　rotatory　regression　were　conducted　to　determine　the　optimal　technological　parameters　of　transplant　manipulator　for　potted　anthurium,　so　as　to　improve　the　transplanting　effect　and　the　success　rate　of　transplanting.　According　to　the　transplanting　tests,　the　weighted　value　of　extracting　effect　was　determined　as　the　experimental　index,　and　the　breakage　rate　of　leaves,　integrity　of　root　and　substrate　and　vertical　degree　of　flower　seedlings　were　selected　by　the　rating　condition　of　weighted　value　of　extracting　effect.　Three　variables　were　selected　as　the　experimental　factors,　i.e.　lifting　cylinder　pressure,　insertion　angle,　and　the　distance　from　steel　needle＇s　insertion　point　to　the　center　of　flower　seedling.　The　regression　equation　of　the　model　was　obtained　by　the　experiment.　Based　on　the　regression　equation,　the　influence　of　single　factor　and　the　optimal　parameters　were　obtained.　The　experiment　results　showed　that　as　the　single　factor,　the　distance　from　steel　needle＇s　insertion　point　to　the　center　of　flower　seedling　had　a　significant　influence　to　the　weighted　value　of　extracting　effect,　which　changed　from　63　to　90　due　to　the　factor.　Moreover,　when　lifting　cylinder　pressure　was　0.36　Mpa,　insertion　angle　of　the　steel　needle　was　28　degrees,　and　the　distance　from　steel　needle＇s　insertion　point　to　the　center　of　flower　seedling　was　38.12　millimeters,　the　weighted　value　of　extracting　effect　could　achieve　93.　The　difference　between　the　predicted　value　and　the　actual　value　was　1%,　and　the　result　from　the　model　was　consistent　with　that　from　the　experiment.　The　optimal　operating　parameters　are　reliable,　stable　and　can　be　applied　to　practical　application.