Equipment for navigation reference in assisted robotic surgery by means of stereotactic navigation of the organs and soft portions of the pelvic area of a patient with surgical instrumentation installed in a robot, wherein the equipment comprises: - a fastening arc, made of radiotransparent material, configured to be joined to a surgical table whereon the patient is placed and which in turn comprises: - an upper bar contained in a plane parallel to the surface of the table, - two lateral bars joined to the upper bar by means of first joining means and together forming an arc over the table; and - second joining means configured to join the lateral bars to the table; - two arms, made of radiotransparent material, joined at one end to the lateral bars by means of third fastening means which have the possibility of movement along the lateral bars, the possibility of rotation with respect to said lateral bars, and each arm comprises an adapter on the free end thereof configured to be temporarily anchored to the patient; wherein - the first joining means have the possibility of movement along the lateral bars and the upper bar; - the lateral bars have the possibility of tilting around the second joining means in order to regulate the inclination of the lateral bars with respect to the table; - the third fastening means comprise a ball joint configured to enable the tilting of the arms with respect to the longitudinal axis of the lateral bars; and in that the equipment further comprises: - a first reference device comprising a mobile part joined to the upper bar with the possibility of movement along it and the possibility of rotation around said upper bar and comprises at least one first reference mark detectable by a navigator; - a second reference device configured to be placed in the surgical instrumentation of the robot by means of a fastening device in the surgical instrumentation and comprises at least one second reference mark detectable by the navigator for triangulating the spatial position of the first reference device. - a fastening arc, made of radiotransparent material, configured to be joined to a surgical table whereon the patient is placed and which in turn comprises: - an upper bar contained in a plane parallel to the surface of the table, - two lateral bars joined to the upper bar by means of first joining means and together forming an arc over the table; and - second joining means configured to join the lateral bars to the table; - an upper bar contained in a plane parallel to the surface of the table, - two lateral bars joined to the upper bar by means of first joining means and together forming an arc over the table; and - second joining means configured to join the lateral bars to the table; - two arms, made of radiotransparent material, joined at one end to the lateral bars by means of third fastening means which have the possibility of movement along the lateral bars, the possibility of rotation with respect to said lateral bars, and each arm comprises an adapter on the free end thereof configured to be temporarily anchored to the patient; wherein - the first joining means have the possibility of movement along the lateral bars and the upper bar; - the lateral bars have the possibility of tilting around the second joining means in order to regulate the inclination of the lateral bars with respect to the table; - the third fastening means comprise a ball joint configured to enable the tilting of the arms with respect to the longitudinal axis of the lateral bars; and in that the equipment further comprises: - a first reference device comprising a mobile part joined to the upper bar with the possibility of movement along it and the possibility of rotation around said upper bar and comprises at least one first reference mark detectable by a navigator; - a second reference device configured to be placed in the surgical instrumentation of the robot by means of a fastening device in the surgical instrumentation and comprises at least one second reference mark detectable by the navigator for triangulating the spatial position of the first reference device. - a first reference device comprising a mobile part joined to the upper bar with the possibility of movement along it and the possibility of rotation around said upper bar and comprises at least one first reference mark detectable by a navigator; - a second reference device configured to be placed in the surgical instrumentation of the robot by means of a fastening device in the surgical instrumentation and comprises at least one second reference mark detectable by the navigator for triangulating the spatial position of the first reference device.