The article presents the results related to developing and practical testing the method of monitoring the stress strain state of steel structures of mine hoisting machines. Certain positive properties of optical fibers make it possible to use them for measuring the stress-strain state of steel structures. An optical fiber of the ITU-T G. https://www.roneverhart.com/Sound-Anchors-ADJ2-Monitor-Stands-44-Tall-Pair-p15046/