Epididymal metastasis from gastric cancer is extremely rare. We reported one rare case. The 34-year-old male patient was found swelling lumps on his right testicle 6 months after adjuvant chemotherapy. The patient was given another 2 cycles of chemotherapy which followed by DCX regimen after the orchiectomy. The patient is still survival 21 months after radical gastrectomy. Therefore the early correct diagnosis and rational treatment are very important for improving the survival rate of patients. The 34-year-old male patient was found swelling lumps on his right testicle 6 months after adjuvant chemotherapy. The patient was given another 2 cycles of chemotherapy which followed by DCX regimen after the orchiectomy. The patient is still survival 21 months after radical gastrectomy. Therefore the early correct diagnosis and rational treatment are very important for improving the survival rate of patients.