In order to explore the remediation method of heavy metal cadmium (Cd) contaminated soil by combining ammonium chloride with citric acid and Celosia argentea L., the effects of ammonium chloride and citric acid on the growth and absorption and enrichment of Cd of C. argentea L., the difference between rhizosphere soil and non-rhizosphere soil, and the effects of ammonium chloride and citric acid on soil Cd content and morphology were studied through field experiment. The results indicated that planting C. argentea L. and applying ammonium chloride treatment (C+AC) could significantly improve the dry weight of above-ground parts of C.argentea L., which increased the yield by 53.03% compared with only planting C. argentea L. (C) treatment. C+CA treatment could improve the ability of Cd absorption and enrichment of C. argentea L., and the Cd content in the above ground parts was 16.64% higher than that of C treatment. The C+AC treatment had the best effect on the accumulation of Cd in the above ground parts of C. argentea L., which was 69.49% higher than that of C treatment. The cultivation of C. argentea L. had significantly reduced the acid-soluble content of Cd in the rhizosphere soil, and the reductions of acid-soluble content of Cd in C, C+AC and C+CA treatments were 10.31%, 15.00% and 12.67%, respectively, which were significantly greater than that in non-rhizosphere soil. The soil Cd reduction rate of C+CA treatment was the highest, which was 5.33%, while that of the CK (without planting C. argentea L.or applying chemicals) was 1.43%, which was only 26.83% of the C+CA treatment. Therefore, the extraction of C.argentea L. still played a key role in Cd reduction, and the best remediation performance of citric acid on surface soil Cd pollution.