In the current study, three experiments explored the framing effects in judgments of learning(JOLs) and the effect of the processing fluency on it. In the experiments, participants made forget-framed JOLs or remember-framed JOLs for each paired-words.Experiments 1 and 2 focused on the effect of the different levels of processing fluency on the framing effect in JOLs. Experiment 3 investigated the influence of retrieval fluency on the framing effect in JOLs. Results of the three experiments showed: Firstly, the framing effects appeared when participants studied the paired-words with high-level processing fluency. Secondly, retrieval fluency does not influence on the framing effects in JOLs. The study supports the pessimistic-anchoring hypothesis, and the findings suggest that encoding fluency plays an important role in the framing effects in JOLs.