The invention discloses a heat exchange enhancement floor heating system which comprises a heat source device, a control device and a floor heating pipeline. The floor heating pipeline comprises round pipe segments; the round pipe segments are connected with oval pipe segments through oval transitional segments; all the round pipe segments are equal in length; all the oval pipe segments are equal in length; the cross angle of long axes of ovals of the sections of every two adjacent oval pipe segments ranges from 15 degrees to 90 degrees; the shape of the cross section of each oval transitional pipe segment is a standard oval or an approximate oval or a flat circle formed by two straight lines and two arcs or a symmetric or nearly symmetric flat circle formed by fitting multiple arcs or a circle; all the oval transitional segments are equal in length; round pipe joint segments are arranged at the two ends of the floor heating pipeline; the inner walls of the round pipe joint segments are smooth; and the inner diameter of the round pipe joint segments is the same as that of the round pipe segments. The heat exchange enhancement floor heating system is simple in structure, the balance of a speed field and a temperature gradient field is effectively and reasonably coordinated, and energy conservation and environment protection efficiency is high.