A wireless communication terminal for activity management, comprising: a position information generating section to measure a present position, and generate position information based on a result of the measurement; an activity information generating section to generate and temporarily store activity information, the activity information including at least an activity record indicating that a predefined action has been performed, and the position information at a time when the activity record is generated; and a communication control section to, if the communication control section determines that wireless communication is available, read out and send the temporarily stored activity information to a management server, and if the communication control section determines that wireless communication is unavailable, wait until wireless communication becomes available, and then read out and send the temporarily stored activity information to the management server, characterized in that measuring the present position is performed by selectively performing either highly accurate position measurement or low power consumption position measurement which is lower in accuracy and in power consumption than the highly accurate position measurement, wherein the activity information generating section has a first mode indicating a predefined action is being performed and a second mode indicating the predefined action is not being performed, and the activity information generating section generates the activity information including the position information measured by the highly accurate position measurement when switching between the first mode and the second mode is alternately performed; and generates, at a predefined timing, the predefined activity information including the position information measured by the low power consumption position measurement except when the switching is performed. a position information generating section to measure a present position, and generate position information based on a result of the measurement; an activity information generating section to generate and temporarily store activity information, the activity information including at least an activity record indicating that a predefined action has been performed, and the position information at a time when the activity record is generated; and a communication control section to, if the communication control section determines that wireless communication is available, read out and send the temporarily stored activity information to a management server, and if the communication control section determines that wireless communication is unavailable, wait until wireless communication becomes available, and then read out and send the temporarily stored activity information to the management server, characterized in that measuring the present position is performed by selectively performing either highly accurate position measurement or low power consumption position measurement which is lower in accuracy and in power consumption than the highly accurate position measurement, wherein the activity information generating section has a first mode indicating a predefined action is being performed and a second mode indicating the predefined action is not being performed, and the activity information generating section generates the activity information including the position information measured by the highly accurate position measurement when switching between the first mode and the second mode is alternately performed; and generates, at a predefined timing, the predefined activity information including the position information measured by the low power consumption position measurement except when the switching is performed.