At present, technology adoption has become a major field of study in information systems,there are few prior studies to examine influencing factors of mandatory adoption of technologies. In order to compensate for this gap, we build and test a model of mandatory enterprise adoption of an e-government technology. Based on the prior marketing theory, and through on-site interviews and telephone interviews,we can know that the factors are different during the different stages of the new products launch. The specific influencing factors are: (1) market preparation stage-awareness; (2) targeting stage-self-efficacy and compatibility; (3) positioning stage-flexibility and price; (4) execution stage-convenience, trust and assistance. Combining the four core technology adoption beliefs in the unified theory of acceptance and use of technology (UTAUT),we construct structural equation model (SEM). We test our model in a survey of 94 Inner Mongolia enterprise,they are issued a mandatory Safety Control System of the Important Unit to access e-government services. We find that only the social influence is not significant on enterprise satisfaction, while the performance expectancy, effort expectancy and facilitating conditions have significant impact on enterprise satisfaction. Among the external factors, the assumption about core technology adoption beliefs is verified. We discuss the theoretical and practical application for governments promoting technologies whose use by enterprise is mandated.