Of rate, there has been a national effort to rehabilitate the degraded area of arid and semi-arid lands (ASALs) of Kenya through disseminating reseeding technology. The technology was selected based on its early attempts as a means of rehabilitating degraded natural pasture in Kenya that reported encouraging success. Due to geophysical constraints, severely resource constrained livestock keeper and some socio-cultural factor prevalent in ASALs of Kenya, the economic potential of reseeding technology in terms of outputs, costs of production and profit are very important factor for farmers’ decision making which has received little attention. This study aimed at evaluating the economics of reseeding natural pasture in the southern rangelands of Makueni County using the range grass species. The recommended grass species were Cenchrus ciliaris, Chloris roxbohurghiana, Enteropogon macrostachyus and Eragrostis superba.