This systematic literature review explores the impact of innovative teaching approaches on student motivation and academic achievement in online blended learning. A thorough search of five electronic databases for studies published between January 2009 and May 2023 yielded 1468 records. Following the Preferred Reporting Items for Systematic Reviews and Meta‐Analyses (PRISMA) and Population, Intervention, Comparison, Outcome and Study‐design (PICOS) frameworks as the basis for the eligibility criteria, 47 studies were eligible and reviewed. The findings revealed that the effects of motivation were influenced by various factors, such as the blended course design, instructor's support, learning environment and the student's characteristics. The common innovative teaching and learning techniques and tools which advanced better teaching and learning were found to be interactive lessons, the use of virtual reality technology, artificial intelligence, project‐based learning, inquiry‐based learning, jigsaw, cloud computing, flipped classroom, peer teaching, peer feedback, crossover teaching and personalised teaching. These techniques positively and significantly affected motivation and academic achievement. Furthermore, results also suggest that educators should carefully consider the needs and preferences of their students when designing their courses and curricula to motivate and support students to achieve their full potential. Based on these findings, instructor support through innovative teaching and learning is vital to sustaining meaningful, innovative interactions that motivate students and promote better academic achievements in innovative online blended learning. Therefore, this study proposed a framework that illustrates that when students are well motivated, they develop personal and academic qualities such as interest, confidence, belonging, cooperation and trust in the educational experiences, resulting in better academic achievement.