Detection test strip for detecting uric acid in saliva and preparation method thereof

The invention relates to a detection test strip for detecting uric acid in saliva and a preparation method thereof. The detection test strip comprises a substrate, filter paper and a porous polymer film. The filter paper is bonded with the substrate, and the porous polymer film covers the filter paper. Buffer salt, uricase, horse radish peroxidase, 4-aminoantipyrine, a color developing agent, an anti-interference agent, a reaction accelerant and a surfactant are loaded on the filter paper, and the color developing agent is N-ethyl-N-(2-hydroxy-3-sulfopropyl)-3-methylaniline sodium salt or 3, 5-dichloro-2-hydroxybenzenesulfonic acid. The detection test strip is high in detection result accuracy, good in repeatability, wide in linear range, high in sensitivity and precision, strong in specificity and good in stability, can be stored for a long time, is convenient to detect on a special full-automatic analyzer, and realizes quantitative detection of saliva uric acid. Besides saliva uric acid, the detection test