The object of the invention is an indicator system of a circular stapler for connecting tissue fragments, which consists of an indicator, an axis shaft of the indicator placed in a body, a tendon system comprising a needle, a tendon, a bolt, support means； a lead screw, an indicator spring and a knob, characterised in that the indicator has the form of a half-sleeve with attached fastening means and indicating means, and moves in a slidably rotational manner on the axis shaft of the indicator as a result of rotating the knob, and consequently the tendon system, which causes the anvil to approach to the load； while the lead screw in a distal area has a projection constituting the finger of the impactor, wherein after reaching a gap of 1 mm between the anvil and the load, the finger of the impactor presses on the upper surface of the indicator, causing it to tilt and indicate the value of 1 mm in the window located on the opposite side of the finger of the impactor and a circular stapler comprising an indicator system.
