With the development of the communication technology and the intelligent terminal, the artificial attendance based on the intelligent terminal technology and mobile communication technology is replaced by the attendance and replacement. Based on this, on the basis of existing research on the ALOHA anti-collision strategy, and improved it for mobile positioning attendance. Firstly, the algorithm design, and then gives terminal specific operation, and finally carried out experiments and comparative analysis of simulation results show that the improved ALOHA algorithm outperforms traditional anti-collision algorithm, ensuring the system has a shorter At the same time delay, can effectively improve the throughput performance.