The objective of this research were 1) to study the level of gratitude shown in high school students in Wat Khaosukim School in Chanthaburi and 2)to compar personal and family factors influencing the gratitude level of high school students in Wat Khaosukim School. The research populations were the 147 high school students in Wat Khaosukim School in the academic year of 2012. The research instruments were a three-multiple-choice questionnaire
with the rating scale at 5 and the reliability level of 0.89. The descriptive statistics were frequency, mean, standards deviation, one way analysis of variance and Scheffe′s test.