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An autoadapted method for drawing up contour maps for multiisland areas is devised by means of the powerful and unique capability of Sufer. Through analyzing various flaws in contour drawing with Surfer (incapability of whitening outward the multiislands maps and poor adaptability), the methods for improving and making the grid documents, whitening documents, and block level documents are given. In combination with the calling of the Automation interface, the algorithm diagram and main codes of the entire process are designed. Taking the 30year meteorological data of Zhejiang Province as an example, the meteorological element contour map superposed on the ZheJiang Province map is obtained by the autoadapted method, which prove that the method has good comparability, expandability, and applicability