The following thesis covers the researches on bonds between fibre reinforced high strength concrete and reinforcing bars. For the purpose of research we had conceived a pull-out test specified on directions in standard SIST EN 10080:2005 in annex D. This standard defines how the specimens and the test are conducted. In a wooden mold we made a cube-shaped concrete specimens with an edge of 20 cm and a rebar with a diameter of 12 mm embedded through the middle. After 28 days the pull-out tests were carried out on hardened concrete specimens using a special testing machine. The bond stress was determined as the stress acting on the circumference of a reinforcing bar. We tested three different types of highstrength concrete which were made with different proportion of steel and polypropylene fibres. Three specimens were made for each type of concrete. The experimental results showed that the fibre reinforcment significantly increased the bond strength between concrete and reinforcement bars.