The invention discloses an apparatus and a method for multipoint pressure measuring long-core deep profile control experiment. The apparatus comprises a balance, beakers, core outlet lines, a computer, a signal wire, a pressure sensor, a core outlet line, a long-core model, an intermediate tube line, intermediate containers, a pump outlet line, a constant-flux pump, an inlet line and a primary container. The long-core model is prepared by filling screened formation sand in a stainless steel pipe and imitating oil deposit conditions such as formation porosity and permeability and the like. The upper part is provided with 6-8 pressure sensors connected with the computer through the signal wire. The primary container is connected with the constant-flux pump through the inlet line; the constant-flux pump is connected with two intermediate containers in parallel through the pump outlet line; the intermediate containers are connected with two parallel-connected long-core model inlets through the intermediate tube line; and the two core outlet lines are respectively inserted into two beakers which are placed on the balance. The apparatus and the method for indoor research are provided for oil deposit deep profile control water-plugging technical research, and provide a certain theoretical basis for the oil field tests.