The existence of small packets in embedded Internet lead to low bandwidth efficiency and even congestion. The Nagle algorithm was applied by standard transmission control protocol（TCP）protocol to reduce the number of small packets. The paper builds embedded Internet network based on ARM7 32 bits micro control unit（MCU）and personal computer（PC）， analyses the principle and working mechanism of Nagle，and suggests an approach to resolve the temporary“deadlock”created by the interaction between the Nagle algorithm and the delayed ACK policy without modifying the Nagle algorithm through improving sampling frequency or filling the buffer in embedded system. The experimental results indicate that this approach is effective and reliable.