The  relative mean transverse momentum of J/$\psi$  as a function of relative charged-particle pseudorapidity density is compared in pp collisions between $\sqrt{s}$ = 5.02 and 13 TeV at forward rapidity.  The vertical bar represents the statistical uncertainty while the  colour box shows the systematic uncertainty per multiplicity bin.  An increase of relative $<p_{T}>^{J/\psi}$ is observed in low multiplicity region, which indicates satuarating trend towards high multiplicity. Black dotted line represents the unity.  The 1.5%  and 0.9% global uncertainty are shown  by the azure and red error box  around uinty on the right side of the plot for $\sqrt{s}$ = 5.02 and 13 TeV, respectively.