Soil total zinc, available zinc and other soil properties were measured to determine their distribution and to identify the influence factors for their variability in Chongqing. The results showed that soil total zinc ranged mostly from 40.2 to 89.6 mg/kg and available zinc was lower, mostly from 0.2 to 4.2 mg/kg. The analytical results of power functions, linear and exponential regression equations showed available zinc content significantly positively correlated with total zinc, organic matter, total nitrogen and total phosphorus contents ( r = 0.524 3**, 0.530 8**, 0.509 7** and 0.463 7*, respectively), but significantly negatively correlated with pH value (r = -0.569 8**）；The results of path analysis indicated that the direct acting coefficients of soil chemical and physical factors on soil available zinc were in the following order: total zinc >total nitrogen >pH, the effect of total Zn on available zinc was most.