The aim of this research is to understand the work pressure, leisure adaption, teaching efficiency and the differences among teachers from different backgrounds. This research looks at the relevancy among work pressure, leisure adaption and teaching efficiency and further analyzes if work pressure and leisure adaption has the power of explaining teaching efficiency and if leisure adaption has a moderating effect on work pressure and teaching efficiency. The targeted subjects were elementary school teachers who serve in the An-Ping district of Tainan City, Taiwan. Research was conducted using a questionnaire survey entitlied: “Questionnaire on the relationship among work pressure, leisure adaption and teaching efficiency of elementary school teachers” as a research tool. Among the 259 samples used, 217 were found to be valid. Descriptive statistics, Independent –sample T-test, ANOVA, Pearson Product-Moment Correlation, multiple regression, and hierarchical regression were used to analyze data and SPSS 19.0 for Windows was used to process the data. Research conclusions are as follows: 1. The work pressure level of elementary school teachers of An-Ping district in Tainan City is medium to low with the highest being in” Work load” perspective; leisure adaption level is medium to high with the highest being in “ Positive-emotion lifting leisure” perspective; The teaching efficiency level is medium to high and highest in “Teaching planning” perspective. 2. The work pressure levels of elementary school teachers of An-Ping district in Tainan City are significantly differentiated by educational background and school size; leisure adaption levels are significantly differentiated by gender; teaching efficiency levels are significantly differentiated by gender and school size. 3. The work pressure and teaching efficiency of elementary school teachers in the An-Ping district of Tainan City are significantly negatively related. On the other hand, leisure adaption and teaching efficiency are significantly positively related. 4. The work pressure of elementary school teachers in the An-Ping district of Tainan City has negative impacts on teaching efficiency while leisure adaption has positive influences. 5. The leisure adaption of elementary school teachers in the An-Ping district of Tainan City has a moderating effect on work pressure and teaching efficiency.