The invention relates to a fertilizer, and concretely relates to a multielement nutritious fertilizer. The multielement nutritious fertilizer is characterized by being composed of the following elements: nitrogen, phosphorus, potassium, and trace nutritious elements iron, zinc, copper, manganese, magnesium, boron, molybdenum, bromine, iodine, cobalt and strontium, a cosolvent citric acid, an anti-caking agent dehydrated alum, a functional additive chitosan, fly ash, pyrite slime and kaolin. The advantages comprise that the formula has extremely strong pertinency on soil and plant growth, and thus the fertilizer relatively fully gives play to fertilizer efficiency, furthest satisfies demands of crops on fertilizers and trace nutrition, increases output of crops, and helps to improve soil granular structure, improve soil water-retention performance, inhibit and kill underground insect diseases and the like.