The invention discloses a suspension bridge cable clamp threaded rod axial force construction method. The suspension bridge cable clamp threaded rod axial force construction method comprises the following steps of obtaining a linearly dependent coefficient K of a propagation time of ultrasonic waves in a threaded rod and an axial force in the threaded rod through linear fitting, wherein in an unstressed state, the initial propagation time of the ultrasonic waves in a threaded rod to be mounted is t1; tensioning the threaded rod by using 80-90% of a designed construction axial force F1, tightlyfastening a nut, and measuring the propagation time of the ultrasonic waves in the threaded rod as t2; after the axial force is unloaded, measuring the propagation time of the ultrasonic waves in thethreaded rod as t3; according to the K and t2 and t3, calculating an actual lost axial force DeltaF1 of the threaded rod and calculating and correcting a construction axial force F2; and tensioning the threaded rod by using the corrected construction axial force F2, tightly fastening the nut, and finishing the tensioning after the axial force is unloaded. The invention relates to the technical field of bridge engineering construction. According to the suspension bridge cable clamp threaded rod axial force construction method, a correction scheme is made for the retraction loss situation of tensioning the single threaded rod so as to properly solve the engineering problems of large axial force loss and large randomness of the threaded rod after the nut is tightly fastened.