The potato plant is a primary horticultural crop that can be used in place of food diversification. The study’s goal is to find the best interaction between rhizobacteria and mycorrhizal on the growth and yield of the potato plant. This study was conducted at the Andalas University, Padang Faculty of Agriculture’s Microbiology and Plant Physiology Laboratories and experimental garden Institute Assessment and Agricultural Technology in Sukarami Solok, from July to December 2018. A 2-factor factorial design with replication and a fully randomized design was employed CRD. The type of rhizobacteria is the first factor: no Rhizobacteria, RZ.1.L2.3, RZ.3.L2.1, RZ.3.L2.2, RZ.1.L2.3, and the second factor is Multispora, Acaulospora, Glomus SP2, and Sclerocystis. Each treatment was replicated three times, consisting of 60 experimental units. The data were analyzed using the STAR application whit a 5% F test, and if significantly different, followed by a 5% HSD test. The outcome demonstrated an interaction between rhizobacteria and mycorrhizal on the fresh weight of the tuber.