NOVELTY - Live microbial composition used for producing a saline land improvement agent in fermentation mode, comprises Cellulomonas fabia, Bacillus sterothermophilus, Lactobacillus, Methanobacterium, Thiobacillus, Bacillus licheniformis, Bacillus polymyxa, Streptomyces, Thermoactinomyces, Thermonospora, Azotobacter, Nitrosomonas, Nitrobacter, Rhizobium, Aspergillus oryzae, Saccharomyces, Penicillium Humicola, and Rhizopus.    USE - The live microbial composition is used for producing a saline land improvement agent in fermentation mode. The agent is useful for improving saline land and for improving plant survival rate in saline land, especially suitable for coastal native saline land (claimed).    ADVANTAGE - The saline land improvement agent can be produced under the condition without reducing the basic stability and adaptability of microbial strains, where the production cost is reduced. It can improve soil quality.    DETAILED DESCRIPTION - Live microbial composition used for producing a saline land improvement agent in fermentation mode, comprises Cellulomonas fabia, Bacillus sterothermophilus, Lactobacillus, Methanobacterium, Thiobacillus, Bacillus licheniformis, Bacillus polymyxa, Streptomyces, Thermoactinomyces, Thermonospora, Azotobacter, Nitrosomonas, Nitrobacter, Rhizobium, Aspergillus oryzae, Saccharomyces, Penicillium Humicola, Rhizopus, Lactobacillus casei, Methanobacterium formicium, Methanobacterium ruminantium, Thiobacillus thiooxidans, Thiobacillus ferrooxidans, Streptomyces thermophilus, Thermoactinomyces vulgaris, Thermonospora curvata, Azotobacter vinelandii, Nitrosomonas europeae, Nitrobacter winogradskyi, Rhizobium japonicum, Rhizobium leguminosarum, Saccharomyces cerevisiae, Penicillium notatum, Humicola insolens, Rhizopus oligosporus, Rhizoctonia, Rhizoctonia cerealis, Cellulomonas fabia, and Bacillus sterothermophilus. INDEPENDENT CLAIMS are:    (1) saline land improvement agent comprising the microbial compositions of animal manure and plant fibers, preferably where animal manure is manure, preferably selected from cow dung, pig manure, and chicken manure, most preferably dung; and/or plant fibers are selected from wood, rice husk, rice bran and rice stalks, preferably rice husk, also preferably comprising water, where water content is greater than standard organic fertilizer, such as greater than 20% (w/w), preferably 30-60% (w/w);    (2) a method for improving saline land comprising applying the saline land improvement agent; and    (3) a method for improving plant survival rate in saline land, comprising administering the saline land improvement agent; and planting vegetation.