故事发生在康熙（夏雨 饰）微服私访安亲王府期间，在那里，康熙偶遇了鳌拜的女儿青格儿（胡静 饰）和明珠的儿子纳兰性德（钟汉良 饰）。因为不知晓康熙的真实身份，青格儿和纳兰性德对其出言不逊，惹得龙颜大怒，所幸孝庄（邬倩倩 饰）及时赶到，两人才免于受罚。之后，纳兰性德入宫成为了康熙的伴读。

　　青格儿一直痴痴的爱慕着纳兰性德，然而纳兰性德的心中早已经有了青梅竹马的惠儿（石小群 饰），青格儿只能将这份感情深深的埋藏在心底。纳兰性德和他的家族因为前者所起草的神功圣德碑文而被卷入了麻烦之中。与此同时，在康熙、纳兰性德、青格儿和惠儿之间，交织了一段段复杂的感情。

Secret History of Kangxi is a 2006 Chinese television series produced by You Xiaogang. The series is the fourth instalment in a series of four television series about the early history of the Qing Dynasty. It was preceded by Xiaozhuang Mishi, Huang Taizi Mishi and Taizu Mishi, all of which were also produced by You Xiaogang. The series was renamed to Nalan and Kangxi for release in Hong Kong on ATV.