The invention relates to a colorful LED sports mate instrument based on attitude sensing. In the invention, a charging circuit provides a reliable constant current charging power supply for a lithiumbattery, and the power supply of the lithium battery provides a 3.3V power supply to a main control and signal matching circuit, an LED drive and display circuit, and a sensor circuit via a voltage stabilization circuit; under the control of a main control chip in the main control and signal emission matching circuit, the sensor circuit collects the current triaxial angular velocity and triaxial acceleration information, and the resulting six-axis data is transmitted back to the main control chip for processing, the main control chip obtains the current attitude through processing and transmitlight emitting information to the LED drive and display circuit according to preset information and trigger rules, and the LED drive and display circuit drives eight full-color LEDs to emit light according to the data obtained from the main control chip. The colorful LED sports mate instrument of the invention has a simple circuit structure and is highly practical.