Concurrent occurrence of neoplasms, adenocarcinoma and small cell carcinoma, have been rarely reported to occur in several areas of the body, including gastrointestinal tract, breast, prostate, lung, skin, and kidney. Also concurrent occurrence of adenocarcinoma and small cell carcinoma in the uterine endocervix is extremely rare. We report a case of concurrent occurrence of primary neruoendocrine type small cell carcinoma and infiltrating adenocarcinoma in the uterine endocervix with multiple pelvic lymph node metastases.