A reflective sensing module is disclosed which can be embedded in a wristband for sensing a health information of a person wearing it. The health information can be wireless transmitted directly or indirectly to the internet for a further process. The reflective sensing module comprises a top glass, a bottom circuitry configured on a bottom surface of the top glass, a light chip and a sensor chip are electrically coupled with the bottom circuitry of the top glass wherein the light chip emits light beams upwards passing through the top glass to an object the sensor chip detects reflective light beams downwards passing through the top glass for a further process.
