A new active queue management algorithm(AQM)called TLED is presented,based on average traffic load and threshold control. TLED uses average traffic load and queue length to denote the congestion level in the network, and calculates the drop- rate probability of packet. Simulations used NS- 2 to compare the performance with RED and LED. The result shows that TLED have better throughput- delay performance and better adaptability than RED and LED.