The Wu dialect is widely spoken in Wu-speaking regions of China, which covers a considerable number of English learners. However, the phonetic system of the Wu dialect differs significantly from that of English, which greatly affects the English learning process of Wu-speaking learners, thus attracting numerous researchers to conduct related studies. This paper provides a comprehensive overview of research on the influence of Wu dialect on English phonological learning over the past two decades and presents a selection of twenty-seven papers to explore the theoretical framework, the research methodology, and the specific impacts encountered by English language learners who speak Wu dialect. Among them, the theoretical discussion centered on language transfer theory, Fleges Speech Learning Model and Bests Perceptual Assimilation Model; the research methodology consisted of qualitative analysis and empirical study; and the focus was placed on positive and negative transfer effects, i.e., the challenges posed by the absence or presence of phonological differences in the Wu dialect to the learners of English. The findings reveal significant segmental and suprasegmental influences in English pronunciation acquisition, with segmental challenges including differentiation of consonants and incomplete articulation of vowels, and suprasegmental challenges including stress placement, intonation patterns, and phonological rhythm. In addition, the discussion highlights the need for more empirical studies to supplement qualitative analyses, the consideration of regional variations within Wu dialect, and the exploration of teaching strategies informed by research findings. Therefore, the paper advocates for future research focusing on regional differences, deeper exploration of suprasegmental influences, integration of research into teaching practices, and diversified research methods.