The technical method of analysis on the strength of ship structure has been improved and become more precise by the recent development of the electronic computer and the technique of its usage. As an example of such analysis, the statistical approach to the fluctuating stresses, caused by 'dynamical loads on the structural members of ships navigating in irregular waves, has been employed by us. Such approach is very important in examining fatigue strength, ultimate strength, reliability on strength, etc. of the structure of ships. In these circumstances we had reported a paper of “Total System of Analysis on the Longitudinal Strength of Ships” and in this paper we present the outline of the system for analyzing transverse strength of ships and the calculated results by this system on a large tanker.