A blood pressure measuring apparatus and a method of operating the same are provided. The blood pressure measuring apparatus includes: a strap; and a main body that is rotatably connected to the strap, wherein the main body includes: a first pulse wave measurer configured to measure a first pulse wave; a second pulse wave measurer that is spaced apart from the first pulse wave measurer at a regular interval and is configured to measure a second pulse wave; and a blood pressure measurer configured to analyze the first pulse wave and the second pulse wave and determine a blood pressure based on the analyzed first pulse wave and the analyzed second pulse wave.