Bromelain,　a　cysteine　endopeptidase　enzyme　of　great　commercial　value,　has　been　widely　used　in　food,　pharmaceutical,　and　cosmetic　industries.　Conventional　methods　for　purification　of　bromelain　are　still　limited　by　a　low　binding　efficiency,　time-consuming　process,　and　expensive　equipment.　Therefore,　for　selective　absorption　of　bromelain,　we　developed　a　facile　and　effective　method　to　fabricate　magnetic　mesoporous　molecularly　imprinted　polymers　using　pericarpium　granati-derived　carbon　as　the　carrier　for　the　first　time.　The　characterizations　of　the　imprinted　polymers　indicated　that　a　polydopamine　layer　was　coated　on　the　surface　of　the　carrier　and　the　crystallinity　of　the　carrier　did　not　change.　The　obtained　imprinted　polymers　exhibited　favourable　saturation　magnetization,　a　high　adsorption　capacity　of　135.96　mg　g(-1),　a　fast　equilibrium　time,　and　satisfactory　reusability.　The　imprinted　polymers　were　prepared　by　an　eco-friendly　method　and　exhibited　rapid　separation　and　good　adsorption　performance,　thus　making　the　method　applicable　to　biomacromolecular　separation,　proteomic　analysis,　and　biomedical　research.