The invention relates to the technical field of immersed tube tunnels, in particular to a calculation method of curved section reinforcement cage feature points. The method comprises the following steps that 1, a binding platform and a rectangular coordinate system are built in cartographic software; 2, a plurality of reference control points and pushing track control points are arranged on the site binding platform, and a pushing track is distributed through the track control points in the pushing direction; 4, a curved section immersed tube, a pushing track and the control points and the reference control points of a pushing track are drawn; 5, section pushing is simulated, the section is moved to the pushing track control points, and coordinates of feature points of a section are measured; 6, according to the coordinates of feature points obtained in the fifth step, site point release is conducted. According to the calculation method, the problem of difficult splicing of adjacent sections caused by single adoption of site point measurement and release can be solved, the binding position of each section can be precisely and quickly determined, the speed and precision of site measurement are improved, it is guaranteed that each section is in butt joint with the previous stage after blinding is completed, and the butt joint precision is within the controllable range.