Spectral parameter evolution of 4U 1543–47 as observed by Insight-HXMT, where L/L_Edd is the total disk luminosity (0.01 – 30 keV) in Eddington units, with L_Edd = 1.2 × 10³⁹ ergs s⁻¹ and systematic uncertainties from the distance and BH mass accounted for; ƒ_sc is the scattering fraction; Γ is the photon power-law index of the Comptonization component; T_in is the inner disk temperature in units of keV; and R_in is the inner disk radii in units of gravitational radii R_g. The shaded red regions denotes the epoch for state transition (Jin et al. 2023). The shaded green regions denote ideal epochs for spin extraction. Due to the similar luminosity values between M1 and M2 which appear indistinguishable, we present only the M2 luminosity values. The Γ factors and ƒ_sc between 59 400 and 59 440 cannot be constrained well due to the low photon count in the ME band for observations in this epoch.