Abstract: Objective To probe the diagnosis and effectiveness of the microsurgical treatment for complex cranio-orbital tumors. Methods These tumors were diagnosed via the clinical analysis and imaging test in sixty-one patients. In this series, all tumors involve into the orbital cavity, including the supraorbital ridge, orbital roof and lateral wall and floor in intracranial. The patients showed the malfunction of optic organs in 57( 93.4% ). The tumors were excised utilized the transcranial approach to the orbit an...