In counseling, the counselor has been paying more attention to verbal expression in many cases, even though the client uses both verbal and non-verbal elements to deliver the message. Even when attention was paid to non-verbal elements, only the observable overt non-verbal elements were studied and utilized. This study investigated convert non-verbal communication between the counselor and the client with a psychoanalytic perspective. The psychoanalytic theory that has been developed in various ways introduces the concepts of the attempt of the client to reveal himself at the unconscious level such as somatization, projective identification, inner working model. Their common feature is that they support the sense of connection and ask for help by conveying painful emotions to the counselor through non-verbal expressions that are difficult to observe. Therefore, this study categorizes this as covert non-verbal communication, and examined the processes in which somatization, projective identification, and internal working model exist and act for client’s adaptation. In addition, we examined the process of therapeutic communication when the counselor notice and respond to the covert non-verbal expression of the client through the existing studies. This study discussed implications of the client s covert nonverbal expressions that the counselor should be aware of during counseling process, implications for what kind of counseling can be exposed and therapeutic intervention, and suggestions for future research.