This paper investigates the effectiveness of task-based digital learning (TBDL) as a teaching method to improve lexical competence for rural secondary school EFL students in Kazakhstan. Rural schools in Kazakhstan experience multiple educational challenges because they have few qualified English teachers and inadequate learning resources and minimal opportunities to experience authentic language situations. This research investigates digital technology integration in vocabulary instruction to improve student language achievement and classroom participation. The research applies Task-Based Language Teaching (TBLT) and constructivist learning theory principles to evaluate how AI-powered flashcards and chatbot conversations can be incorporated into task-based learning activities. The research used a mixed-methods approach which included pre- and post-intervention vocabulary tests and classroom observations and student interviews in chosen rural Kazakhstani schools. The research demonstrates that TBDL effectively enhanced students’ receptive productive abilities simultaneously their together their skills self- learning . The demonstrates TBDL educational to inequalities education supporting educational under trilingual .