Research in the field of second language learning indicates that proper use of language learning strategies leads to the improvement of overall Second Language (L2) or Foreign Language (FL) proficiency as well as specific language skills. This essay firstly attempts to build a theoretical framework of learning strategies theories by clarifying the definitions and categories of learning strategies, discussing the relevant factors influencing strategy choice, while making references to the status quo in China; then it looks at what some learners do that makes them ‘good language learners’; finally, some preparatory work is suggested as a start for undertaking learner training in EFL (English as a Foreign Language) classrooms.