Aming to find out any relationship between the health status of high school girls and the early loss of their parent, the Cornell Medical Index (C.M.I) Questionnaire and interview method were used for 314 girls as an experimental group and for 300girls as a control group. The study results showed as follows: 1. A significant difference in the health status between the experimental group and the control group was found in that the C.M.I. score showed higher in the experimental group than in the control group. 2. A significant difference in the health status was found in accordance with the sex of the lost parent, the cause of loss of the substitute for the lost parent, the age of losing parent and the duration of loss of parent in the experimental group. 3. A significant difference in the health status in the experimental group showed according to the three variables in the six variables-the sex of the lost parent, the cause of loss of parent, the substitute for the lost parent, the age of losing parent, the duration of loss of parent and the degree of economic support. The most significant factor toward the health status was shown by the age of losing parent, the sex of lost parent and the cause of loss of parent with the order.