An apparatus and a method which reduce production cost and reuse resources by analyzing characteristics of useful metal wastewater generated from a production line and recycling the metal wastewater in a process using a resin or membrane utilized for removing or separating ions, and absolutely reduce quantities of wastewater and waste to operate a plant environmentally and friendly are provided. An apparatus and method for regenerating copper wastewater comprises: a pH adjusting part(13) installed to adjust a pH of wastewater flown in; a storage tank(1) for storing wastewater flown in from the pH adjusting part; a filter(2) connected to a discharge line of the storage tank; a micro-filter(3) for filtering again wastewater passing through the filter; an ion exchange tank(4) which has a wastewater inlet formed on a lower portion thereof such that wastewater passing through the micro-filter is injected from a lower side to an upper side through the wastewater inlet, and in which a weak acidic chelate-based resin
