Objective: Internal migrant workers have been experiencing increasing psychological problems recently. This study investigated the interplay between depressive and anxiety symptoms and their association with suicidal ideation among migrant industrial workers, using a network analysis approach. Method: Cross-sectional data from 1792 participants were collected using self-reported scales for depressive and anxiety symptoms in Shenzhen, China. Network analysis was adopted to reveal key symptoms and their connections within the network. Results: The detected rates of depressive and anxiety symptoms were 40.3% (95%CI: 38.1%similar to 42.6%) and 29.0% (95% CI: 27%similar to 31.2%), respectively. The reported rate of suicidal ideation was 7.9% (95% CI: 6.7%similar to 9.2%). The top ten strongest edges in the model were observed within depression and anxiety domains. "Being so restless that it is hard to sit still", "Feeling blue" and "Trouble relaxing" were central to the network, while "Feeling nervous, anxious or on edge" and "Sleep disturbance" acted as bridge symptoms in the network. The strongest direct relation to suicidal ideation was anxiety symptom A2 "Unable to stop or control worrying". Conclusion: Findings highlight the interconnected nature of depressive and anxiety symptoms and how these symptoms related to suicidal ideation, thus providing insights for targeted interventions to improve mental well-being among migrant industrial workers in Shenzhen. Intervention strategies focusing on the most influential symptoms such as "restlessness" and "feeling blue" may yield better effectiveness.