The anvil cubic press is the special equipment for compositing superhard materials under the condition of high temperature and high pressure. Because of the longterm working under hyperpressure and alternating load, the hinge beam of cubic press is easier to produce fatigue cracks and even fracture. In order to realtime monitor the health status of the stress critical position of hinge beam, a set of strain monitoring system for hinge beam was developed based on Cortex-M3. Microprocessor Cortex-M3 was adopted to construct the strain monitoring hardware device of the system that the signal collection, disposal, storage and wireless transmission were concentrated into one whole. Additionally, the special fileld strain monitoring sensors for hinge beam of cubic press was designed for the strain gauge installation. And the host computer software for the longdistance data reception and condition monitoring was designed. It acquisited and analyzed the strain data via the internet on the condition of the hinge beam operation.So the remote monitoring to the health status of cubic press is realized.