This research is to study the detection of Escherichia coli in foods fermented pork from department stores and markets, Mueang Loei province. The samples of pork wrapped with banana leaves from the market, the number of 2 brands, brands, each 1 samples.The 2 brands, brands, each 1 examples include a 4 samples, samples were tested by 2 times Petrifilm Count Plate. Test and biochemistry IMVIC Test from. The results showed that the sample fermented pork wrapped in banana leaf brand B equals 2.0 x 103 CFU / G. It is found that the infections were exceeded microbiological quality. Of traditional fermented foods products from animals, community standards, assistant47 O / 2012 Thai Industrial Standards Institute, Ministry of industry, is defined. Traditional fermented food products from animals to find E infections. Coli less 3 CFU / G so the รวจหา E infections.Coli in foods fermented pork. Therefore, one way to help realize the dangers and find out how to prevent problems in order to ensure the safety of consumers more