Cleaning agent and using method thereof

The present invention discloses a cleaning agent. The cleaning agent comprises an agent A, an agent B and an agent C, the agent A is sodium bicarbonate, the agent B is hydrogen peroxide, and the agentC is sodium hypochlorite. The cleaning agent has the characteristics of good cleaning effect, easiness in rinsing, and no formation of secondary pollution; the cleanness achieved after cleaning usingthe cleaning agent of the invention is obviously better than the cleanness achieved after wiping with alcohol; the cleaning agent of the invention reduces the use amount of the alcohol, so the hiddensafety hazard is greatly reduced; and after rolling wheels in the drying segment of a PCB is cleaned by the cleaning agent of the invention, the anti-plating failure rate of the PCB is significantlydecreased. The cleaning agent of the invention has the advantages of good cleaning effect, strong decontamination ability, stable product performances and safety in use. 本发明公开了一种清洗剂及其使用方法，该清洗剂包括A剂、B剂和C剂，所述A剂包括碳酸氢钠，所述B剂包括双氧水，所述C剂