1. A bio-expression system comprising: a process system used to process data; an average model generating module embedded in said computing system, wherein while an input of two-dimensional individual model sections is fed into said process system, said average model generating module is responsive to said input of two-dimensional individual model sections and is capable of processing an individual model construction and model-averaging procedure, thereby generating an average model from all the input datasets; a database including a bio-expression sub-database, cellular network sub-database and bio-fine structure sub-database, wherein said database is coupled to said process system to store at least said average model; and a stereoscopic projecting system coupled to said process system, to display a stereoscopic image for active or passive virtual reality applications, thereby presenting the bio-expressions, cellular networks or bio-fine structures under the input instruction of said process system.