The aim of the current study is to comparative evaluation of the effect of receiving and not-receiving supportive, educational intervention on the level of stress, depression, perceived social support, and satisfaction of the caregivers of the patients undergoing gynecological surgery. The research population is the patients’ caregivers referring to Khorramabad city’s training Asali hospital. The number of the subjects regarding to sample size formula is 60 caregivers in each group. The caregivers will be classified in 2 groups; control group (without supportive, educational intervention), and intervention group (with supportive, educational intervention). In intervention group, each caregiver will be undergone education and support in time of her patient’s arrival to the operating theater after obtaining informed consent form and directing to the waiting room located beside the operating theater according to the predetermined supportive educational program, but control group will not receive any supportive educational intervention. Before and after the patient’s surgery, the level of the stress, anxiety, and depression of the caregivers will be assessed by depression, anxiety and stress scale(DASS21), the level of satisfaction by self made questionnaire and perceived social support by the Multidimensional Scale of Perceived Social Support, respectively. The subjects and study statistician are not informed about the groups and the way of delivering intervention. The inclusion criteria are the following; lack of psychological disease, being of patient’s caregiver in the hospital and in the waiting room during surgery; being literate. The exclusion criteria are the following: lack of desire to continue cooperation in each step of the study and/or the decease of the patient.