This study investigated the impact of spaced and massed instruction on foreign language reading motivation and reading attitude among Iranian pre-intermediate EFL learners. To fulfil this objective, 60 Iranian participants were chosen among 120 students based on the results of Oxford Quick Placement Test (OQPT). The selected pre-intermediate participants were then divided into two equal experimental groups: spaced group and massed group. Afterwards, the researcher measured the participants’ reading motivation and reading attitude by administering a reading motivation questionnaire and a reading attitude survey as a pre-test. Then, both groups received the treatment. During the treatment phase of the study, the massed group was taught the reading comprehension in an intensive 60-minute session, while the spaced group was taught in three short sessions (twenty-minute session). After the instruction, a reading motivation questionnaire and a reading attitude survey as a post-test were carried out to both groups and finally the data were analyzed by running paired and independent sample t-tests. The outcomes demonstrated that there was a significant difference between the post-tests of spaced and massed groups. The findings indicated that the spaced group significantly out performed the massed group (p < .05) on the reading motivation and reading attitude post-test. The implications of this study make teachers know that teaching through spaced periods can produce better outcomes than teaching through one massed session.