Provided are a tire pressure detecting module that simply identifies a position of a tire detecting module to automatically assign the position of the tire detecting module and a tire pressure detecting system including the same. The tire pressure detecting module includes a phase angle sensor detecting a phase angle of a wheel, a pressure detecting sensor detecting a pressure and temperature of a tire, a pressure detecting control unit selecting one transmission pattern of a plurality of transmission patterns, in which phase angle numbers are arranged, to calculate a standby time taken until a phase angle number of the selected transmission pattern and the detected phase angle of the wheel match each other, and a pressure detecting transmission part transmitting tire information including the pressure or temperature detected according to the selected transmission pattern, transmission pattern information that is information with respect to the selected transmission pattern, and the standby time.