Potassium ferricyanide in an aqueous solution is easily decomposed into highly toxic substances (potassium cyanide and hydrogen cyanide) by light or alkaline action, which poses a major hazard to environmental and human health. Here, a reticulated aggregation-induced emission (AIE) supramolecular polymer material (TPAP-Mb@tQ­[14]) was prepared by the supramolecular self-assembly of twisted cucurbit[14]­uril (tQ­[14]) and a triphenylamine derivative (TPAP-Mb). TPAP-Mb@tQ­[14] not only recognizes Fe­(CN)6 3– with sensitive specificity with a limit of detection (LOD) of 1.64 × 10–7 M but can also effectively remove and adsorb Fe­(CN)6 3– from an aqueous solution with a removal rate as high as 97.38%. Meanwhile, an important component of the supramolecular polymer material (tQ­[14]) can be reused. Thus, the tQ­[14]-based supramolecular assembly has the potential to be used for applications addressing toxic anionic contaminants present in aqueous environments.