The design status and existing problems in Bulk-cement Delivery Tankers were studied at first, and then the importance to construct the Rapid Design of Bulk-cement Delivery Tankers was discussed. Based on variant design, the rapid design system of bulk-cement delivery tankers was proposed, and the architecture and the key implement of this rapid design system were expounded. Research and practice show that this rapid design can not only improve enterprises’ rapid feedback abilities, but also save the designer’s time and cost, shorten design period as well as. As a result, it will greatly enhance the enterprises’ competition ability. Furthermore, this proposal can be applied to the design of other similar mechanical objects with few changes.