Method and device for laying rail for rail transit

A device for laying a rail for rail transit, comprising:

• a continuous casting device;
• a continuous rolling device;
• a first carrying device;
• a second carrying device;
• and
• a steel rail laying apparatus;
• wherein the rail is a steel rail formed by an on-site fabrication, the rail is continuously laid on site, and the on-site fabrication of the steel rail comprises at least continuous casting and rolling processes;
• wherein the continuous casting device and the continuous rolling device output the steel rail being uniform and continuous, and the steel rail is laid by the steel rail laying apparatus;
• and
• wherein the continuous casting device and the continuous rolling device are both located on top of the second carrying device, and the second carrying device is located on top of the first carrying device, the first carrying device is configured to move along a rail laying route, the second carrying device is configured to move back and forth at least along a rail laying direction relative to the first carrying device, and the second carrying device is further configured to move laterally along the rail laying route.