Abstract: Taking the new-producing pickled mustard tuber which does not mix with any condiment as raw materials, choosing 7 kinds of transparent plastic packing material and a non-transparent one as reference, we produce pickled mustard as ordinary production process and use modern method to analyse the quality of the pickle which are packed by the selected plastic packing material and stored under natural conditions. By performing the experiment, it is concluded that the A packaging group has best quality than other packaging groups except the control one in color, smell pickle sensory quality and total acid, amino nitrogen, reducing sugar, Vc etc chemistry; the pickled mustard tuber packed by PA/RCPP、PA/CPE have better quality; the other packed by PET/PE(big)、PET/PE(small)、BOPP/PE、BOPP/CPP have bad quality in colour and smell which are unacceptant.So A is a good transparent material to keep the quality of pickled mustard.