Abstract: The two-tank setup was employed to produce linearly stratified salt-water in laboratory tank. Laboratory experiments on buoyant plumes were undertaken by jetting dense salt-water downward into the linear stratification, aiming at investigating plume development in stratified salt-water. The time-resolving Particle Image Velocimetry (PIV) approach was adopted to investigate the flow field through the entire plume development. Plume visualization showed three distinct stages of plume development, namely, the inflow stage, the producing stage of the neutral buoyant layer, and the stabilizing stage of the neutral buoyant layer. It was shown that flow velocity decreased from plume stem to edge. Instantaneous flow fields revealed there were complex vortices both near the plume boundary and inside the plume which indicated entrainments occurred throughout plume development. The experimental results agreed with the MTT(Morton, Taylor and Turner) model in general, although with a slightly modified prefactor to the empirical formula. This paper contributes to plume investigations by adding supplemental data to small-scale plume regime of the MTT model.