The majority of large cystic solid spaces in the abdominal cavity are benign, although further investigation is needed to confirm this. Clinically, most cystic solid occupations are benign lesions, which may be hemangiomas, fibrous tumors, cysts, etc. If the cystic occupations are huge, they should be removed promptly. If the cystic space is huge, it should be removed by surgery in time, and the nature of cystic space needs to be examined by pathology in order to determine whether it is benign or malignant. Giant cystic solid occupations in the abdominal cavity may also be malignant lesions, such as gastrointestinal mesenchymal tumors. This kind of tumor has a high degree of malignancy and a poor prognosis. If the tumor is huge or metastasis occurs, the general effect of surgical treatment is poor, and conservative treatment is the mainstay. The discovery of huge cystic solid occupations in the abdominal cavity requires further examination to confirm the type of diagnosis and treatment as prescribed by the doctor.