In the solidification process of alloy, forced convection produced by time-varying electromagnetic fields can effectively control the redistribution process of alloy solute. The application of electromagnetic field in the solidification and growth process of materials can be conductive to the research of its thermophysical properties, phase equilibrium, metastable state, microstructure formation, component undercooling and nucleation. The solidification process of the alloy has been studied in details in the gravitational environment. The electromagnetic field method has been used to intervene the solidification front effectively and some results have been obtained in the crystal structure and segregation. Microgravity conditions provides a technique for obtaining semiconductors or alloys with more uniform composition at both macroscopic and microscopic scales. The current research shows that the solidification characteristics of the alloy under the microgravity environment are different from the gravitational conditions. In this paper, the effects of forced convection on the macro-segregation, micro-segregation, crystal morphology and the growth pattern and spatial distribution of intermetallic compounds in the process of crystal growth are discussed in terms of the theoretical and experimental perspectives.