Despite many new agricultural enterprises and job opportunities, millennials are underrepresented in this industry. This issue has also affected millennials, who will replace small-scale oil palm growers. Prolonging this issue could harm Malaysia’s food production chain, especially the palm oil industry. Interface design strongly affects millennials’ online learning engagement, according to studies. Subpar interface designs may also contribute to millennials’ disinterest in online learning. Prior studies have shown that millennials’ cultural background substantially influences their involvement and commitment. The lack of guidelines on a culture-based strategy specific to the agriculture sector in Malaysia has slowed the creation of a more efficient and effective interface to engage and dedicate millennials. Thus, this study uses Hofstede’s cultural model to assess Malaysian millennials’ cultural features and aims to create a sustainable online learning paradigm. This research has three main phases to succeed. In the first phase, Hofstede’s cultural model assessed millennials’ cultural traits. The second phase determined the interface features for an online learning platform for millennial farmers in the proposed model. Expert evaluation validated and improved the model in the third step. This suggested method is a model for designing an interface to increase millennial students’ engagement towards online agricultural learning in Malaysia. The millennial generation is also expected to learn about the latest sustainable palm oil growing practices and find new ways to diversify income. This will indirectly boost Malaysian small-scale oil palm producers’ production and income, especially small-scale oil palm cultivation.