Magnetic　field　is　a　simple　and　powerful　means　that　enables　controlled　the　transport　of　electrode　particles　in　flow　electrode　capacitive　deionization　(FCDI).　However,　the　magnetic　particles　are　easily　stripped　from　hybrid　sus-pension　electrodes　and　the　precise　manipulation　of　the　charge　percolation　network　remains　challenging.　In　this　study,　a　programmable　magnetic　field　was　introduced　into　the　FCDI　system　to　enhance　the　desalination　per-formance　and　operational　stability　of　magnetic　FCDI,　with　core-shell　magnetic　carbon　(MC)　used　as　an　alter-native　electrode　additive.　The　results　showed　that　the　pulsed　magnetic　field　(PMF)　was　more　effective　in　enhancing　the　average　salt　removal　rate　(ASRR)　compared　to　the　constant　magnetic　field　(CMF),　with　51.6%　and　67.7%　enhancement,　respectively,　compared　to　the　magnetic　field-free　condition.　The　outstanding　advantage　of　the　PMF　lies　in　the　enhancement　in　the　trapping　and　mediating　effects　in　the　switching　magnetic　field,　which　keeps　the　concentration　of　the　electrode　particles　near　the　current　collector　at　a　high　level　and　greatly　facilitates　electron　transport.　In　long-term　operation　(20,000　cycles),　the　pulsed　magnetic　FCDI　achieved　a　stable　desali-nating　rate　of　0.4-0.68　mu　mol　min-1　cm-2　and　a　charge　efficiency　of　＞　96%.　In　brief,　our　study　introduces　a　new　approach　for　the　precise　manipulation　of　charge　percolation　networks　of　the　suspension　electrodes　and　provides　insight　into　the　charging　mechanism　of　the　magnetic　FCDI.