Abstract: World population is growing exponentially and it has to fulfill their food requirements. An attractive strategy for increasing productivity and labour utilization per unit area of available land is to intensify land use. Intercropping is advanced agro technique of cultivating two or more crops in the same space at the same time have been practiced in past decades and achieved the goal of agriculture. It increases in productivity per unit of land via better utilization of resources, minimizes the risks, reduces weed competition and stabilizes the yield. Several factors influence the intercropping such as maturity of crop, selection of compatible crop, planting density, time of planting as well as socio economic status of farmers and the region. In intercropping, land is effectively utilized and Land Equivalent Ratio (LER) is used to measure the productivity of land. Several findings show the advantages of intercropping by using LER. Cereal-legume intercropping is commonly practiced in world wide. Maize has reorganized as a component crop in most intercropping. In this study, the work carried out by various researches in maize based intercropping are discussed. This work would be useful to the researchers who involves in this field.