Wireless local area network card power management circuit and wireless internet access terminal with circuit

The invention discloses a wireless local area network card power management circuit and a wireless internet access terminal with the circuit. The wireless local area network card power management circuit comprises a DC/DC voltage stabilizer with function of limiting input current; and an input pin of the DC/DC voltage stabilizer is connected with a power access end, and an output pin of the DC/DC voltage stabilizer is connected to a follow-up function circuit of an internet access card to provide working power supply for the follow-up function circuit. The wireless local area network card power management circuit has simple circuit structure, high power conversion efficiency, low integral power consumption of a system, few used devices, simple wiring, low cost, and small space area occupied on a circuit board, so the wireless local area network card power management circuit can contribute to miniaturization design of the wireless internet access terminal, and can stably and reliably protect a computer connected with the wireless internet access terminal.