The article examinesthe stress-strain behavior of reinforced concrete beams by utilizing the digital image correlation (DIC) technique and micro-indicators. Bending elements are commonly found in reinforced concrete structures, making the precise assessment and application of new methods, which simplify labor-intensive procedures and improve accuracy in measuring deformations and load-bearing capacity, highly significant. The research aims to evaluate both experimental and theoretical studies regarding the deformation and bearing capacity of reinforced concrete beams under load. Experimental investigations were carried out using micro-indicators and the digital image correlation method. The study resulted in the determination of deformation values in the concrete’s compressed zone, stresses in the reinforcement, and deflection values. Comparative graphs were plotted for micro-indicator readings, DIC results, and theoretical values obtained through finite element modeling using the “LIRA” software. The constructed graphs demonstrate a strong correlation, with experimental and theoretical outcomes for the compressed concrete zone and tensile reinforcement being within a 7% error margin, and deflection values deviating from the theoretical results by no more than 5%.