Children anti-loss tracker

The utility model brings forward a children anti-loss tracker. The children anti-loss tracker comprises a main module, a GPS module, a GPS built-in antenna, an acceleration transducer, a charging unit, a charging interface and a built-in battery, wherein the GPS module is connected with the main module for instant positioning and tracking, the GPS build-in antenna is connected with the GPS module, the acceleration sensor is connected with the main module for detecting the motion state of the children anti-loss tracker, the charging interface is connected with the charging unit, and the charging unit is also connected with the main module and the built-in battery for charging the built-in battery; the main module is externally provided with a crystal oscillator and is also integrated with a voice conversation monitoring module, a GSM/GPRS modem, a power supply management system and an AD analog quantity detection circuit; and the children anti-loss tracker is provided with a waterproof housing with a charging head. The children anti-loss tracker provided by the utility model has a waterproof function and has also has the advantages of quite small power consumption, quite long standby time, super-high power saving effect and quite small dimension.