Under the background of the digital development era, intangible cultural heritage has been rapidly developed with the help of digital intelligence technology. At the same time, digital development has put forward new requirements for the inheritors of various intangible cultural heritage projects. However, the digital maturity of intangible cultural heritage inheritors will directly affect the inheritance and dissemination of intangible cultural heritage. This study constructs an evaluation model for the digital ability maturity of intangible cultural heritage inheritors based on 22 Hakka intangible cultural heritage workshops in Guangdong. The basic connotation of digital maturity is clarified and its core elements are proposed by the literature method, and the initial evaluation model for the digital ability maturity of intangible cultural heritage inheritors is compiled by expert consultation method and mathematical statistics method. The questionnaire data of 187 personnel in the intangible cultural heritage workshops are selected for reliability and validity analysis, exploratory factor analysis and confirmatory factor analysis. The research results show that: first, the evaluation model for the digital ability maturity of intangible cultural heritage inheritors consists of four subscales: content creation ability, data management ability, technical application ability, and communication and marketing ability, with a total of 12 items. Second, the fitting indicators of the second-order four-factor structure model are statistically significant. Third, through the mean analysis of the four factors, it was found that data management ability (3.2781) > communication and marketing ability (3.2781) > content creation ability (2.7772) > technology application ability (2.7451). Therefore, this study recommends strengthening the digital ability training of intangible cultural heritage inheritors, upgrading the digital hardware equipment of intangible cultural heritage workshops, and strengthening learning and communication among intangible cultural heritage inheritors. Establish a scientific evaluation system and incentive mechanism for the digital ability maturity of intangible cultural heritage inheritors. This model provides a scientific and effective reference for improving the digital application ability and technical maturity of intangible cultural heritage inheritors.