Abstract The aim of the survey on superior products of Micro, Small and Medium Enterprises (UMKM) is to determine the level of production and analysis of production costs incurred in one production process as well as the efficiency of the agro-industry business of processed fish into shredded fish in the Ampenan sub-district. The research method used was a survey method, namely by taking 10 respondents randomly from the marine fish processing industry into shredded fish. The research results of the 10 respondents in this study, looking at the efficiency of the sea fish processing agro-industry business in Ampenan sub-district, Mataram city, show that the R/C ratio is > 1, this shows that the agro-industry business of processing sea fish into shredded fish is worth pursuing, meaning that every additional cost of one unit will increase the respondents' business income. Key Words: Leading Product Survey, MSMEs, Agro-Industrial Processing