The Government obligate to secure BMN. The security include physical security, administrative, and legal secure. In order to secure the necessary administrative administration system that can create a control (controlling) on BMN. Thus the necessary tools in the form of system that can simplify the administration and control of BMN. Management Information Systems and Accounting State Assets (SIMAK-BMN) was organized with the aim to produce the necessary information as a tool of accountability for the implementation of the budget and management / control BMN controlled by an accounting unit of goods. But until now has not carried out an evaluation of the level of keefektivitas SIMAK-BMN especially in the Ministry of Culture and Tourism. Therefore conducted a study to determine the factors that influence the effectiveness of SIMAK-BMN. So this study can be useful for applications maker SIMAK-BMN in knowing what the important factors that must be considered to improve the effectiveness of SIMAK-BMN which have been implemented. The result is that the factors that influence the effectiveness of SIMAK-BMN are Facility, Usability and Quality Systems. Without the factors above, it is very unlikely that SIMAK-BMN can operate effectively.