CIP cleaning in place (CIP) is a new and effective cleaning technology, which is widely used in dairy products, juice, beer, sugar, pharmaceutical and other industries. CIP on-site cleaning is to use high-temperature and high concentration cleaning solution to clean and disinfect the equipment in situ under the condition that the equipment, pipelines and valves do not need to be disassembled and moved to other places. CIP on-site cleaning system can reduce labor intensity, and its cleaning effect can be quantified by conductivity. Computer automatic program cleaning and conductivity feedback control can standardize the cleaning effect and efficiency.