The invention relates to a simple embedded pipe adding method which comprises the following steps: step 1, selecting the mounting position of an embedded pipe at the bottom or on the wall of a tank and marking the locating point; step 2, drilling at the locating point through a diamond tapping machine to form a mounting hole communicated with the inner cavity of the tank; step 3, coating the wall of the mounting hole with a mounting hole anticorrosion layer which is connected with an anticorrosion layer on the inner side surface of the tank wall; step 4, coating the outer wall of the embedded pipe with a resin glue mud layer; step 5, further coating the end surface of the embedded pipe and the inner side surface of the tank wall with a secondary anticorrosion layer, and covering the surface at the tail of the embedded pipe and the outer side surface of the tank wall with gridding cloth through brushing and sticking; step 6, putting into use after solidification of the mounting hole anticorrosion layer, the resin glue mud layer and the secondary anticorrosion layer. According to the simple embedded pipe adding method, the embedded pipe adding process can be simplified, the damage caused by tapping to the concrete structure of the tank body and the inner anticorrosion layer is smaller, processes like secondary grouting solidification and maintenance of concrete are avoided, the construction period is shorter, the operation is simple and convenient, and high easiness in construction is achieved.