Abstarct: Micro-Nanobubbles are very tiny air bubbles, the diameter ranges from 10 to 50 μm and less than 200 nm respectively, surrounded by a liquid usually water. Stable and tiny air particles in MNB (water containing micro-nanobubbles) cause faster reaction between cement and water. Cellular light weight concrete is a concrete with stable air cells that are uniformly distributed in concrete mixture. Required materials to produce foam concrete are cement, sand, water, foam and allowable additives. In foam concrete, any density in the range of 300 kg/m3 to 1600 kg/m3 has its own application, including, filler roles, carrier or non-carrier blocks and structural. In this study, a comparison between tap water and MNB used in foam concrete were performed. Experiments were conducted baxsed on a single mixture but in numerous repetitions. The mixture including 350 kg/m3 cement, 300 kg/m3 stone powder and 0.5 and 0.6 water-cement ratio’s was selected after some trial and error procedure. Compressive strength, cement setting time, foam concrete setting, shrinkage, water absorption, tensile (indirect) strength and flexural strength tests were conducted on specimens. According to the results, MNB has a positive effect on the mechanical properties of foam concrete. For instance, compressive strength at the age of 7, 28 and 90 days increased up to 18%, 13% and 5%, respectively. Tensile and flexuarl strength tests showed that for 28-day aged foam concrete made with MNB improved 27% and 22% in average, respectively. The primary and secondary setting times of cement decreased to 28 and 30 minutes, respectively while the primary and secondary setting times of foam concrete went down to the 20 minutes and 58 minutes, respectively. A negligible decrement on water absorption and shrinkage, 1%, was also detected in this research.