Encouraging employees to provide voices is a key aspect of management practices.Voice behavior may be the result of the combined influence of employee cognition and affection.This study,based on the Cognitive-Affective Personality System theory,used a questionnaire to collect data from 303 employees in multiple companies in the South China for analysis.The findings are as follows:(1)Supervisor developmental feedback and colleague developmental feedback significantly and positively influence employee voice.(2)Psychological safety and affective commitment mediate the relationship between developmental feedback and employee voice.(3)Employee neuroticism moderates the relationship between colleague developmental feedback and psychological safety and affective commitment.(4)Employee neuroticism moderates the mediating role of psychological safety and affective commitment in the relationship between colleague developmental feedback and employee voice.This study not only provides a new perspective on employee voice research from the cognitive and affective dual perspectives but also enriches the localized research on organizational developmental feedback,providing targeted recommendations for creating a conducive environment for voice within companies.