The research of intelligent machines has been an increasingly concerned subject these days.Due to the great complexity of the subject

however

the research faces many difficulties for the time being.From a long period of study we discover that the foundation and the nucleus of intelligence roots in the consciousness and the mechanism of consciousness emergence is just the same as the process of comperehensive information production.As a result of this discovery

a theory and the related functional model of consciousness based on comprehensive information theory are established

and the technical feasibility of the model implementation is also discussed.The results reported in the paper may lay certain foundation for the exploration of the mysterious consciousness and a new

and a promising

approach to the research of intelligent machines may also hopefully be initiated.