Fusarium is a kind of conditional pathogenic fungus. There are few reports of peritonitis caused by Fusarium at home and abroad. This paper reports a case of Fusarium verticillioides peritonitis complicated with bacteremia and reviews relevant literature. The patient was admitted to the hospital due to fever and abdominal pain. After peritonitis was diagnosed, the initial treatment was vancomycin plus ceftazidime kept in the abdominal cavity every night for 3 days, but the effect was not good. The antibiotic was upgraded to vancomycin plus meropenem for 2 days, but still, there was no effect. Subsequently, Fusarium was found after ascites fluid culture, and the treatment regimen was changed to voriconazole antifungal therapy and hemodialysis. However, the patient developed a dialysis catheter-related infection. After the infection was cured, the fever was still repeated, and the infection indexes did not improve. Further, the pathogenic microorganism of whole blood infection was detected by high-throughput gene detection, and it was clinically confirmed as Fusarium verticillioides. At last, the patient recovered and was discharged from the hospital after treatment with voriconazole combined with amphotericin B. Fusarium is highly pathogenic, and it is hoped to attract more attention of clinicians.