The source coding problem is considered for secret sharing communication systems (SSCS\´s) with two or three channels. The SSCS, where the information

is shared and communicated through two or more channels, is an extension of Sbannon\´s cipher communication system and the secret sharing system. The security level is measured with equivocation; that is,

, etc., where

and

are the wire-tapped codewords. The achievable rate region for the given security level is established for the SSCS\´s with two or three channels.