The objectives of this research were 1) to study the level of English language learning strategies, 2) to study the level of English language learning achievement motivation, and 3) to establish and validate a causal relationship model of English language learning strategies and achievement motivation with empirical data. The population of this study was 1,597 second-year physical education students from 17 campuses of Thailand National Sports University. The sample size was determined for 20 people per 1 observed variable (Hair, et al., 2010), in which there were 22 observed variables in this research. The sample size was calculated to be 440 people (20 x 22) and the sample proportion was determined according to the population of each campus. The questionnaire used in the research was a 5-rating scale questionnaire with a content validity ranged between 0.67-1.00 and the reliability value of the English learning strategy questionnaire, the reliability value of the English language learning achievement motivation questionnaire and the reliability value of the whole questionnaire were 0.936, 0.958 and 0.967, respectively. The results of this research indicated that 1) The English language learning strategies of physical education students at Thailand National Sports University were at a moderate level in both overall and individual strategies. 2) The level of English language learning achievement motivation of physical education students at Thailand National Sports University was at a high level and ( 3 the causal relationship model of English language learning strategies and achievement motivation among physical education students at Thailand National Sports University was consistent with empirical data.