The aim of this study is to reveal the relation between lifelong learning tendency and achievement motivation. The sampling of the study consisted of 570 prospective teachers attending a pedagogical formation course at two universities in Turkey in 2016. Relational screening model was used in the study and the data were collected through achievement focused motivation scale and lifelong learning tendency scale. The collected data were analysed using regression analysis on SPSS 22. As the findings suggest, there is a low, positive correlation (r = 0.095) between prospective teachers' achievement motivation and lifelong learning tendency at 95% confidence interval. As for the correlation between lifelong learning tendency and the sub-dimensions of achievement motivation, lifelong learning tendency has a significant correlation with the expansion of objective (r = 0,139), self-consciousness (r = 0,128) and internal effect (r = 0,089). However, it doesn't correlate significantly with external effect (r = -0,024). As the standardised regression coefficient (ß) indicates, the relative order of importance of predictor values on lifelong learning tendency is as follows; external effect, expansion of objective, self-consciousness and internal effect.