Double certificates are one of the significant agrarian issues in Indonesia, including in Semarang City. This phenomenon gives rise to legal uncertainty, social conflict, and economic losses for holders of legitimate land rights. This study aims to analyze the factors causing double certificates, the forms of legal protection provided, and preventive measures that can be taken. Based on a normative-empirical approach, it was found that weaknesses in the implementation of Standard Operating Procedures (SOP), lack of coordination between agencies, and low legal literacy among the community are the main factors driving this case. Mediation is the main mechanism in resolving double certificate disputes, although it is still constrained by the absence of standard procedures. Meanwhile, the litigation route offers higher legal certainty, but is time-consuming and expensive. Digitization of land administration, such as the implementation of electronic certificates and digital land maps, is a strategic step that needs to be accelerated to prevent overlapping data. In addition, public education on the importance of maintaining land documents and verifying the physical location of land before transactions must be carried out massively and continuously. This study recommends comprehensive administrative reform and strengthening coordination between agencies to create a more transparent and efficient land system. The research contributes to the development of agrarian law in Indonesia, especially in increasing legal certainty and protection of land rights.