Negotiation of meaning (NoM) has played a facilitative role in second language acquisition. However, the existing studies have primarily focused on adult English language learners. This study investigated the impact of task type and task complexity on NoM strategies among young learners of Chinese as a second language, an underexplored group. The participants were 110 students in Hong Kong aged 10-12, mainly from Pakistan, India, Philippines, and Nepal. They were asked to perform four tasks with different task types and levels of task complexity in Cantonese (the primary Chinese dialect spoken in Hong Kong). In terms of task type, the study found that required information exchange tasks (i.e., information gap tasks) produced significantly more clarification requests, confirmation checks, self-repetitions, and other repetitions in terms of total numbers and numbers per 100 Chinese characters than the optional exchange tasks (i.e., decision-making tasks). Complex tasks, on the other hand, elicited significantly more confirmation checks than simple tasks. These findings provide useful insights for designing tasks that can promote greater use of NoM strategies in classroom practice. Copyright © 2024 Walter de Gruyter GmbH, Berlin/Boston.