Disclosed is a method for changing the rolls on a rolling mill for rolling a metal strip, carried out using a Quarto rolling mill, including lower and upper working and support rolls. The installation includes a system for extracting the working rolls and the support rolls, including: an actuator pushing the rolls out of the roll stand extraction; a coupling head, secured to the actuator, situated in a position of opening of the roll stand, including: a first coupler driving the chock or the end of the lower working roll, on the rolling-mill drive side; a second coupler driving the chock of the lower support roll, on the rolling-mill drive side. The first and second coupler allow successive extractions of the working rolls and then of the support rolls from the roll stand using the actuator of the extraction system. Also disclosed is a related rolling mill installation.