In this meta-analysis study, a total of thirty-one studies related to strategy use of students in Taiwan in a web-based English context were identified, collected, and analysed. Three criteria for selecting the appropriate studies are (a) they must have applied web-based instruction; (b) they must be related to English learning; and (c) they had to provide one of the following data in order to calculate effect size (ES), including means and standard deviation (SD), "F" values, or "t" values. The characteristics were divided into three groups; that is, study characteristics, methodological characteristics, and design characteristics. The findings reveal that predicting, summarizing, self-questioning and clarifying; text annotation with pictures, and glossing were strategies with higher effect size (ES greater than 0.920). Findings from the meta-analysis in this study could provide a basis for designing and developing a strategy-oriented web-based instruction. (Contains 4 tables.)