Disclosed herein are a secure message-sending method using a personalized template and an apparatus using the method. A personalized template for a message service is acquired from a user. A personalized message to be sent to a terminal of the user is generated based on the personalized template. A secure message is generated by obfuscating the personalized message in accordance with the personalized template, and the secure message is sent to the terminal. Accordingly, it is possible to provide secure messages without requiring the construction of separate infrastructure.