There are large numbers of blind people in our country who cannot move around freely. The designation of the guide-stick can help them have a better recognition of the road, so this will bring great convenience to their daily life. The guide-stick can detect the surrounding information and feedback to the users in other forms, when there are obstacles in front of the users it can warn them in the form of light and sound and at the same time it can remind the passers-by away from the users. Compared to conventional guide-stick, this guide-stick with high precision, ease of use, low cost and fully functional characteristics and at the same time it can broadcast the temperature with voice.