In the OTN+WiMax control system of Metro, the use of wireless backhaul can reduce costs and increase security. This paper presented a variety of OTN+WiMax hardware solution for Metro monitoring systems for wireless backhaul system by comparing the variety of chips; For WiMAX, Wi-Fi coexisting wireless backhaul situation, we put forward the hardware design using low-power high-speed chip of Infineon's SMARTi hardware design,, and pointed out that the design programme belongs to energy-saving green environmental. Also we used Intel WiMAX Connection 2,400 chip design hardware programme of wireless backhaul system for monitoring. At last, The software radio technology is applied to wireless backhaul system.