Plant growth-promoting bacteria (PGPB) appear to be a sensible competitor to conventional fertilization, including mineral fertilizers and chemical plant protection products. Undoubtedly, one of the most interesting bacteria exhibiting plant-stimulating traits is, more widely known as a pathogen,Bacillus cereus. To date, several environmentally safe strains ofB. cereushave been isolated and described, includingB. cereusWSE01, MEN8, YL6, SA1, ALT1, ERBP, GGBSTD1, AK1, AR156, C1L, and T4S. These strains have been studied under growth chamber, greenhouse, and field conditions and have shown many significant traits, including indole-3-acetic acid (IAA) and aminocyclopropane-1-carboxylic acid (ACC) deaminase production or phosphate solubilization, which allows direct plant growth promotion. It includes an increase in biometrics traits, chemical element content (e.g., N, P, and K), and biologically active substances content or activity, e.g., antioxidant enzymes and total soluble sugar. Hence,B. cereushas supported the growth of plant species such as soybean, maize, rice, and wheat. Importantly, someB. cereusstrains can also promote plant growth under abiotic stresses, including drought, salinity, and heavy metal pollution. In addition,B. cereusstrains produced extracellular enzymes and antibiotic lipopeptides or triggered induced systemic resistance, which allows indirect stimulation of plant growth. As far as biocontrol is concerned, these PGPB can suppress the development of agriculturally important phytopathogens, including bacterial phytopathogens (e.g.,Pseudomonas syringae,Pectobacterium carotovorum, andRalstonia solanacearum), fungal phytopathogens (e.g.,Fusarium oxysporum,Botrytis cinerea, andRhizoctonia solani), and other phytopathogenic organisms (e.g.,Meloidogyne incognita(Nematoda) andPlasmodiophora brassicae(Protozoa)). In conclusion, it should be noted that there are still few studies on the effectiveness ofB. cereusunder field conditions, particularly, there is a lack of comprehensive analyses comparing the PGP effects ofB. cereusand mineral fertilizers, which should be reduced in favor of decreasing the use of mineral fertilizers. It is also worth mentioning that there are still very few studies on the impact ofB. cereuson the indigenous microbiota and its persistence after application to soil. Further studies would help to understand the interactions betweenB. cereusand indigenous microbiota, subsequently contributing to increasing its effectiveness in promoting plant growth.