Guixin zashi 癸辛雜識 "Miscellaneous news from Guixin [Street]" is a "brush-notes"-style (biji 筆記) collection of essays written during the Southern Song period 南宋 (1127-1279) by Zhou Mi 周密 (1232-1298), who is also the author of the books Wulin jiushi and Qidong yeyu.
The Guijin zashii is 6 juan long and divided into 4 series (Qianji 前集, Houji 後集, Xuji 續集, and Bieji 別集). It was written in Zhou's house in Guixin Street 癸辛街 in Hangzhou 杭州 (in today's Zhejiang province), hence the name of the collection.
It describes describe contemporary individuals, their stories, and discussions, and are based on conversations that Zhou Mi had on his sickbed with his visitors. Many stories can serve as historiographical sources of life at the court of the Southern Song dynasty. While Zhou's Qidong yeyu 齊東野語 is mainly concerned with courts politics and ancient matters, the Guxin zashi focuses on personal affairs and literary remains.
In the first collection, places in the gardens of Wuxing 吳興 (modern Suzhou 蘇州, Jiangsu) are described; the second gives an impression of the National University (taixue 太學) and includes information on the music in the capital Lin'an 臨安 (Hangzhou); in the third collection, the reader finds a scene how Gong Kai 龔開 (1221-1305) composed laudatory poems for Song Jiang 宋江 and his companions; and in the last collection it is told how Yang Ji 楊髠 desecrated the imperial tombs.
There is a print included in the series Baihai 稗海, in which the first collection is erroneously replaced by a part of the Qidong yeyu. The Guixin zashi can also be found in the series Jindai mishu 津逮秘書, Xuejin taoyuan 學津討原, and the Siku quanshu 四庫全書. A modern edition was published in 1988 by the Zhonga Shuju Press 中華書局, with annotations by Wu Qiming 吳企明.