City God beliefs have always occupied a special place in the belief culture of traditional Han Chinese society. The City God deity, besides being classified by the imperial dynasties as a deity worthy of imperial religious rites and worshipped by officials, has also been viewed among the people as the administrator of the underworld, with the duty of harmonizing Yin and Yang; therefore, many specialized religious rituals have been developed. Daoism, in its long development, has also similarly absorbed the City God to include the deity within its pantheon, and coordinated with popular City God beliefs to form a great deal of more specialized ritual services. Hsinchu’s City God Temple occupies a special place in Taiwan’s City God belief culture. From the mid-Qing dynasty, the temple has fully experienced sacrificial worship and abundant incense offerings. The Daoist altars of Hsinchu’s old moat district, under the stimulus of the Hsinchu’s City God beliefs, have become extremely special areas for the development of Daoist branch schools and are now intimately connected with City God beliefs. From the daily ritual services and the Middle Prime Sacrificial Rites of Hsinchu’s City God temple, we can see the inseparable relationship between popular City God beliefs and Daoist ritual.