This study aimed to determine the level of Academic Performance and Phil-IRI result of the Grade IV pupils from the four select schools in Villanueva South District and find the significant relationship of the Academic Performance and Phil-IRI Result and the findings was the basis for an Intervention Plan to be made. This study used the descriptive-correlational design presenting systematic organization of data. There were 173 Grade IV pupils as the respondents of the study during the School Year 2022 – 2023. Results revealed that 68 or 39.31 percent are in the Satisfactory level in their Academic Performance which grades ranges between 80 – 84. Moreover, 86 or 49.71 percent of them are in the Instructional Level in their Phil-IRI result. Thus, it showed that there is a significant relationship between the Academic Performance and PHIL-IRI result of the pupils. With this, an Intervention Plan was exhibited in this study to improve the Academic Performance and Reading Literacy of the pupils. The Intervention Plan were presented during the In-Service Training to the four schools included in this study. It should be emphasized that the Phil-IRI test result has something to do with the academic performance of the pupils.