The invention is a kit for detecting the expression of paraffin-embedded surgical specimens of patients with esophageal cancer in combination with 5-lipoxygenase metabolic pathway protein antibodies, and then predicting the prognosis of patients. The kit includes antibodies ‑5‑LO, FLAP, and LTA4H antibodies for 3 target proteins, as well as goat serum, 0.01M citrate repair solution, 3% H2O2, Polymer enhancer, Polymer polymer, DAB chromogenic reagent, PBS solution. However, the kit of 5-lipoxygenase metabolic pathway protein used in the present invention to jointly predict the patient's prognosis has a higher predictive effect than single index detection, second only to the predictive ability of TNM staging, and the immune tissue based on the present invention The chemical hypersensitivity two-step method is a mature and reliable method that can be widely used in primary hospitals.