Entrepreneurial Orientation (EO) has emerged as an imperative driver for organizational innovation and corporate entrepreneurship. Grounded in the framework of Personal-Environment (P-E) Fit theory, the purpose of this study is to explores the influence of the fit between Organizational Entrepreneurial Orientation (OEO) and Individual Entrepreneurial Orientation (IEO) on the manifestation of employee intrapreneurial behavior (IB), specifically in the domains of strategic renewal behavior (SRB) and venture-creating behavior (VB). To empirically test our hypotheses, we conducted a study utilizing polynomial regression analysis with a surface response approach, drawing data from 292 valid survey responses obtained from employees within private enterprises in China. Scientific novelty: This study introduces a novel perspective by examining the interplay between IEO and OEO in the context of EO and corporate entrepreneurship. While scholars have recognized EO's significance in enhancing organizational competitiveness, this research underscores the importance of considering both individual and organizational dimensions in shaping EO's impact. Key Findings: (1) Both IEO and OEO positively contribute to IB, although the strength of this influence varies between the two subdimensions of IB; (2) The fit between IEO and OEO positively contributes to the manifestation of IB; (3) SRB and VB, as distinct subdimensions of IB, operate under unique stimulation mechanisms within the framework of P-E Fit theory.