In Ethiopia,there is poor uniformity and predictability of criminal penalties.One of the causes for this problem is the fact that the criminal code gives the judges a wide discretion in determining the criminal penalty or imprisonment. Due to this two persons may receive different sentences for the materially the same criminal act. In order to mitigate this problem,the Federal Supreme Court has made Sentencing Guidelines. I think these guidelines has improved and also will improve the uniformity of criminal penalties in Ethiopia.