The invention discloses a perception activity notification system and method. The system comprises a first server which comprises a first receiving module, a first acquisition module, a first confirmation module and a first transmitting module. The first receiving module is used for receiving registration information transmitted by a terminal. The registration information at least comprises reserving perception time and terminal identification information. The reserving perception time is time during which the terminal performs perception activities. The first acquisition module is used for acquiring position information of the terminal within the reserving perception time received by the first receiving module and before end of time during which the terminal performs the perception activities. The first confirmation module is used for confirming a perception activity notification area according to the position information acquired by the first acquisition module. The first transmitting module is used for transmitting notification information of the perception activities to the terminal in the perception activity notification area confirmed by the first confirmation module. With application of the aforementioned technical scheme, a problem of passive mass privacy disclosure caused by performing the perception activities of the terminal can be solved.