A system for electro-physiological analysis of plants, characterized in that it comprises: a. a plurality of acquisition systems, each acquisition system comprising: i. a plurality of pairs of electrodes each comprising a first electrode and a second electrode intended to each be connected to the same plant in order to pick up first and second analog electrical potentials; ii. a plurality of operational amplifiers arranged to measure the differences in potential between the first and second analog electrical potentials acquired by the first and second electrodes of this acquisition system, and a plurality of analog-to-digital converters arranged to convert the differences in potential into digital signals; b. a central data collection system comprising a memory and an electrical energy source; characterized in that each acquisition system is connected to the central system and comprises: c. a connection unit arranged to transmit the digital signals to the central system; d. a power unit arranged to transmit electrical power obtained from the electrical energy source to the operational amplifiers and to the analog-to-digital converters; and wherein each acquisition system is arranged to galvanically isolate the operational amplifiers and the analog-to-digital converters from the power unit and from the connection unit. a. a plurality of acquisition systems, each acquisition system comprising: i. a plurality of pairs of electrodes each comprising a first electrode and a second electrode intended to each be connected to the same plant in order to pick up first and second analog electrical potentials; ii. a plurality of operational amplifiers arranged to measure the differences in potential between the first and second analog electrical potentials acquired by the first and second electrodes of this acquisition system, and a plurality of analog-to-digital converters arranged to convert the differences in potential into digital signals; i. a plurality of pairs of electrodes each comprising a first electrode and a second electrode intended to each be connected to the same plant in order to pick up first and second analog electrical potentials; ii. a plurality of operational amplifiers arranged to measure the differences in potential between the first and second analog electrical potentials acquired by the first and second electrodes of this acquisition system, and a plurality of analog-to-digital converters arranged to convert the differences in potential into digital signals; b. a central data collection system comprising a memory and an electrical energy source; characterized in that each acquisition system is connected to the central system and comprises: c. a connection unit arranged to transmit the digital signals to the central system; d. a power unit arranged to transmit electrical power obtained from the electrical energy source to the operational amplifiers and to the analog-to-digital converters; and wherein each acquisition system is arranged to galvanically isolate the operational amplifiers and the analog-to-digital converters from the power unit and from the connection unit. c. a connection unit arranged to transmit the digital signals to the central system; d. a power unit arranged to transmit electrical power obtained from the electrical energy source to the operational amplifiers and to the analog-to-digital converters; and wherein each acquisition system is arranged to galvanically isolate the operational amplifiers and the analog-to-digital converters from the power unit and from the connection unit.