《康熙微服私访记4》也是讲述了清朝国泰民安，皇帝康熙混在民间的故事。故事也是分为三个故事来叙述。康熙去山西私访，为查案件扮成镖手，路上遇到黑道，原来是官员为了骗钱而谋划的案件，康熙大怒，决定查清真相，最后凶手事情败露，准备要杀康熙，幸好救兵及时的赶到救了下来，康熙与林凤儿一同回皇宫。宫里宦官当臣，众人不敢妄议，太监也是十分的猖狂。宜妃到民间私访布店，谁知屡遭拐骗，挑事，康熙决定彻查案件，作案者为了怕事情败露，绑架康熙，得知康熙身份后，准备害死对方，救兵在关键时刻救出康熙，作案者也难逃法网。撒容儿父亲蒙冤而死，她扮成宫女要刺杀皇上，看到康熙为了国事日渐操劳，于心不忍下手害人，定妃怕败露，害死了撒容儿，康熙悲痛欲绝彻查此事，将定妃等人处置，了却次案件。

"Kangxi Weifu Private Interview 4" also tells the story of the Qing Dynasty's prosperity and people's peace, and the emperor Kangxi mixed with the people Story. The story is also divided into three stories to narrate. Kangxi went to Shanxi for a private visit and dressed up as a bodyguard to investigate the case. On the way, he encountered gangsters. It turned out that the case was planned by officials to defraud money. Kangxi was furious and decided to find out the truth. In the end, the murderer was revealed and was going to kill Kangxi. Fortunately, the soldiers rescued Arriving in time to save them, Kangxi and Lin Fenger returned to the palace together. The eunuchs in the palace were ministers, and no one dared to speak rashly, and the eunuchs were also very rampant. Concubine Yi went to privately visit the cloth shop, but she was repeatedly abducted and provoked. Kangxi decided to investigate the case thoroughly. The perpetrator kidnapped Kangxi for fear of being exposed. After learning Kangxi's identity, he planned to kill him. The rescuers rescued Kangxi at a critical moment. , The perpetrators cannot escape the law. Sa Rong'er's father was wronged and died. She pretended to be a court lady to assassinate the emperor. Seeing Kangxi working hard for state affairs, Yu Xin couldn't bear to do harm to others. Concubine Ding was afraid of being exposed and killed Sa Rong'er. Kangxi was heartbroken. For this matter, concubine Ding and others will be dealt with, and this case will be closed.