An intelligent household nursing method based on an Internet of things technology comprises the following steps that S1, cameras of household users in a preset geographical range are divided into a household-user exclusive camera and a shared camera; an only identification character string of each household user is generated, the only identification character string and a user sharing corresponding table of the corresponding shared camera are established, and the only identification character string and the user sharing corresponding table are encrypted and stored in a household user server; S2, the household user server acquires a shared usage rule and household credit grade information of a monitoring camera configured by each household user; the shared usage rule includes a linkage monitoring excitation rule and a credit authentication rule; S3, the household user server encrypts the only identification character string, the user sharing corresponding table, the shared usage rule and the household credit grade information and then sends to a center sever; and S4, the center sever acquires environment characteristic information in the preset geographical range.