The Application of Information Processing Theory to English Vocabulary Learning Strategies in a Chinese High School 1.0 Introduction Learning of language among humans is a topic that has gained educators’ attention. This is because how individuals learn, involving acquiring, synthesizing, and retaining previous information, influences the choice of long-term objectives associated with an instruction. Vocabulary learning is a component of language learning, which improves learners’ understanding of acquiring the second language (Letchumanan et al. 2016; Moeller et al. 2009; Liu 2016). In its use in various senses, the definition of the term vocabulary is not limited to counts of words in a language. Still, it includes entire words associated with a particular chronological era (Bai 2018). Vocabulary is