Through the analysis of the total content of heavy metal nickel in soil, pesticide, fertilizer, farmyard manure and atmospheric dust samples, the exogenous input pathway of heavy metal nickel in jujube in typical areas was determined. ICP-MS (inductively coupled plasma mass spectrometry) was used to analyze the content of heavy metal nickel in the samples. The results showed that the tested soil and fertilizer samples contained heavy metal nickel in the range of 17.194~67.279 and 0.450~26.800 mg/kg, respectively. The total content of nickel in chicken manure, bioorganic fertilizer, amino acid water-soluble fertilizer and phosphate fertilizer was relatively high. In the same region, the total content of nickel in the atmospheric dust decreased with time, but there was no significant difference among different villages and towns in the same region. The total content of nickel in different kinds of pesticides from high to low was: A, B, C and D. The total content of nickel in 15 jujube garden soil increased with irrigation water flow. Based on the above analysis, it could be concluded that soil, fertilizer, atmospheric dust, pesticide and irrigation water were all exogenous input ways of heavy metal nickel in jujube.