Abstract: Log processing positioning apparatus in which a log is brought to pass along a path from an input end of the same and through a log processing device at an output end of the path provided to divide the log into wood products. Between the input end and the processing device a scanner is provided to register the dimensions and shape of the log passing through the scanner. A computer is provided to receive and analyze the values registered by the scanner and relating to the dimensions and shape of the log by means of a program directed towards a number of cutting patterns and the position of the log in the processing device in order to divide the log into wood products so that the maximum yield is obtained. A first positioning device is provided to feed the log along the path, to move it transversally to the extension of the path and to turn the log along its longitudinal axis and provided to be governed by the computer in order to give the log said intended position.