Clothing piece cutting tool

A clothing cloth piece cutting tool comprises a positioning column, a soft beating board ruler and fixed magnets, the soft beating board ruler comprises a curve board ruler part and a straight ruler part which are sequentially connected, a plurality of positioning holes are formed in the periphery of the soft beating board ruler at equal intervals, positioning magnets are installed at the two ends of the soft beating board ruler, the positioning column comprises a needle body, a vertical channel is formed in the needle body, and an opening is formed in the upper end face of the needle body. The lower end of the needle body is a tip part or provided with a mark pen point communicated with the vertical channel, an outlet communicated with the vertical channel is formed in the peripheral side of the tip part, a soft rubber ball is inserted into the upper end of the needle body and filled with erasable ink, and a barrier film is arranged between an inner cavity of the soft rubber ball and the opening. The tool is