Abstract: In order to encourage the growth of fibrous root and increase the survival rate of plantlet transplanted, seedling growth of Melilptus suaveolens Ledeb. and Ammopiptanthus mongolicus (Maxim.ex Kom.) Cheng f. was researched by induced root containers with porous protruberances surface (IRCPPS) and cultivation medium. The result showed that: growth of plants in IRCPPS was better than in common plastic pots with medium1, and particulaily overground part of Melilptus suaveolens and underground of Ammopiptanthus mongolicus. such as the plant height, leaf number, leaf area, main roots, fibrous roots, aboveground plant fresh weight, dry weight and the underground part of the fresh weight, dry weight of Melilptus suaveolens Ledeb. were 56.21%, 65.00%, 70.00%, 21.00%, 41.96%, 61.11%, 97.3%, 11.56%, 19.03% more respectively in IRCPPS filled by medium1 than in common plastic pots. Those indices of Ammopiptanthus mongolicus in IRCPPS were higher than ordinary pots 21.82%, 4.44%, 15.97%, 38.28%, 76.83%, 18.76%, 20.07%, 57.84%, 19.77%. The aboveground growth of two species in CK pots was better than in IRCPPS，but the growth of their roots was improved significantly. The plant seedling growth with medium2 in ck pots was better than with medium1; Melilptus suaveolens in IRCPPS with medium2 was cultured better, but Ammopiptanthus mongolicus was opposite, was better in the medium1. IRCPPS could promote the seedling growth, but effect of IRCPPS should be different with different plant species and different medium.