In this paper, investigated the effect of polypropylene fiber and Ligth Expanded Clay Aggregate (leca) on concrete plastic shrinkage. When the concrete has a plastic state and no final set process has been done, the evaporation agent from the concrete surface causes crests in its capillary pores These pores cause negative pressure in the concrete and shrink the matrix. This type of shrinkage is called plastic shrinkage. When the water evaporates from the concrete surface that is in the plastic phase, it is more to Water thrown, the concrete is exposed to cracking of plastic shrinkage. In this research, the plastic shrinkage test according to ASTM C1579-06 standard was carried out on samples containing 1, 3 and 5 liters per cubic meter of polypropylene fibers and 30 percent leca by volume from sand and a combination of 1 liter per cubic meter of fiber and 30 percent Leca was done. The results showed that the polypropylene fibers reduced the width of the cracks and with increased fibers reduced the average width of the crack but the Saturated with dry surface leca did not have a positive effect.