Chemical plating waste liquid treating agent as well as preparation method and application thereof

The invention belongs to the technical field of waste liquid treatment, and particularly relates to a chemical plating waste liquid treatment agent and a preparation method and application thereof. The invention provides a chemical plating waste liquid treating agent which comprises the following components in percentage by mass: 0.1-10% of a core component, 0.1-90% of a carrier and the balance of a regulator, the core component is at least one of metal or metal salt thereof. The chemical plating waste liquid treating agent is convenient to use and can be directly added into chemical plating waste liquid for treatment, and tedious and tedious pretreatment and multi-process combined treatment are not needed; the chemical plating waste liquid treatment agent is high in chemical plating waste liquid treatment efficiency, metal ions and a reducing agent in the chemical plating waste liquid can be synchronously converted and removed, metal by-products are high in purity and large in additional value, and the chemi