DY-3500 intelligent multifunctional food analyzer is suitable for detecting unsafe indicators in food, such as formaldehyde, hanging white block, hydrogen peroxide, boric acid, volatile base nitrogen, nitrite, sulfur dioxide, protein, residual chlorine, iodine. Salt iodine content, amino acid nitrogen in soy sauce, sodium glutamate in monosodium glutamate, nitrate and other common detection items. The intelligent multi-functional food comprehensive analyzer can be widely applied to industrial and commercial systems, agricultural systems, quality supervision systems, health supervision systems, import and export inspection and quarantine centers, aquatic product quality supervision and inspection departments, aquatic product market supervision departments, aquaculture, food and drug supervision. The system, commercial system, economic and trade commission, etc. are also used in food production enterprises, large and medium-sized agricultural and sideline products wholesale markets, agricultural production bases, farmer's markets, supermarkets, hotels, restaurants, canteens, scientific research units, plant protection stations, etc. Safety indicators are monitored. Another health care product comprehensive analyzer, cosmetics comprehensive analyzer