Purpose: Although scalp video / EEG monitorization plays a major role in the selection of the patients for temporal lobe epilepsy surgery, invasive ictal EEG recording is sometimes necessary to delineate epileptogenic areas in patients with intractable epilepsy. Methods and Patients: Seven patients with temporal lobe epilepsy who had inconclusive noninvazive lateralizaling and localizing data was monitorized by using subdural strip electrode. All patients had scalp telemetred EEC's and subdural electrodes were placed according to the scalp EEG monitorization data. Three or more seizures with subdural strip electrodes were recorded. Results: In five of seven cases one epileptogenic focus was determined. After that these patients underwent an anterior temporal lobectomy+amygdalohippocampectomy operation and all of them were seizure free in their follow up. Hippocampal sclerosis was confined pathologically in three of five, one patient had neocortical gliosis and the other had hamartoma. Multifocal epilepsy was considered in one patient in whom one epileptogenic focus couldn't be localized. We recommended monitorization by using depth electrode to other patient, but she didn't accept this procedure. During subdural strip electrode recording no complication was seen. Conclusions: Video / EEG monitoring with subdural strip electrode correctly localizes and lateralizes the epileptogenic focus in selected patients with temporal lobe epilepsy. This procedure has tolerable morbidity because of the usefullness to the patients. If the focus is determined correctly, anterior temporal lobectomy is a good chance for these patients.