The objectives of this research were to 1) develop reading literacy using metacognitive reading strategies with analysing text structure, 2) develop metacognitive reading behaviours using metacognitive reading strategies with analysing text structure, and 3) study the relation of reading literacy and metacognitive reading behaviours of Mathayomsuksa 1 students after learning by using metacognitive reading strategies with analysing text structure. The samples were 30 of Mathayomsuksa 1/1 students who enrolled Thai language subject in semester 1, academic year 2023 at Kham Kaen Nakhon School, The Secondary Educational Service Area Office KhonKaen. Research instruments were six lesson plans using Metacognitive Reading Strategies with Analysing Text, post-lesson report, teaching behaviours of teachers and learning of students report, metacognitive reading strategies with analysing text checklist, reading literacy framework process checklist and reading literacy assessment. The instruments used to evaluate the research were reading literacy test and reading behaviours questionnaire. Statistics used for data analysis were mean, standard deviation, percentage, Pearson correlation coefficient and content analysis. The findings indicated that 1) the percentage of the students’ reading literacy scores were 83.07 and 80 percentages of the students met the criteria which was at a higher level, 2) the student’s metacognitive reading behaviours were at a high level and 80 percentages of the students met the criteria at a higher level and 3) metacognitive reading behaviours and reading literacy were related after using metacognitive reading strategies with analysing text structure.