Method of controlling or regulating the temperature of a cast strip in a continuous casting plant with a controlling or regulating unit for control or regulation of the temperature of the cast strip in a secondary cooling of continuous casting plant with at least one means for cooling the cast strip, characterised by (a) a dynamic adaptation of a target temperature of the cast strip to at least one position in dependence on the exit temperature of the cast strip from the mould, (b) a dynamic change at least of a target temperature of the cast strip on the basis of data and/or signals which the controlling or regulating unit receives and/or determines, (c) wherein at least one target temperature distribution, preferably a plurality of target temperature distributions, for the strip surface are stored as selectable preset values in the memory of the controlling or regulating unit and the control or regulation of the secondary cooling is carried out on the basis of the stored target temperature distributions, (d) the controlling or regulating unit on the basis of determined and/or received data or signals carries out determination of the warping and stretching of the strip and/or strip skin between at least individual rollers, (e) and determination of a ductility of the strip is carried out by the controlling or regulating unit on the basis of determined and/or received data or signals, (f) and the controlling or regulating unit determines a hardening length of the strip on the basis of determined and/or received data or signals, (g) wherein the value of the determined warping and/or stretching is compared with a comparison value and if a limit value is exceeded a warning is triggered and/or lowering of the target temperature of the strip is or are carried out at least in the region of the strip in which the exceeding is determined, and (h) wherein the determined ductility of the strip is compared with a predeterminable limit value of the ductility and if this is fallen below a warning is triggered and/or if it is fallen below a reduction of the target temperature of the strip is caused and (i) wherein the determined hardening length of the strip is compared with a predeterminable limit value and if this is exceeded a reduction of the target temperature of the strip is caused. (a) a dynamic adaptation of a target temperature of the cast strip to at least one position in dependence on the exit temperature of the cast strip from the mould, (b) a dynamic change at least of a target temperature of the cast strip on the basis of data and/or signals which the controlling or regulating unit receives and/or determines, (c) wherein at least one target temperature distribution, preferably a plurality of target temperature distributions, for the strip surface are stored as selectable preset values in the memory of the controlling or regulating unit and the control or regulation of the secondary cooling is carried out on the basis of the stored target temperature distributions, (d) the controlling or regulating unit on the basis of determined and/or received data or signals carries out determination of the warping and stretching of the strip and/or strip skin between at least individual rollers, (e) and determination of a ductility of the strip is carried out by the controlling or regulating unit on the basis of determined and/or received data or signals, (f) and the controlling or regulating unit determines a hardening length of the strip on the basis of determined and/or received data or signals, (g) wherein the value of the determined warping and/or stretching is compared with a comparison value and if a limit value is exceeded a warning is triggered and/or lowering of the target temperature of the strip is or are carried out at least in the region of the strip in which the exceeding is determined, and (h) wherein the determined ductility of the strip is compared with a predeterminable limit value of the ductility and if this is fallen below a warning is triggered and/or if it is fallen below a reduction of the target temperature of the strip is caused and (i) wherein the determined hardening length of the strip is compared with a predeterminable limit value and if this is exceeded a reduction of the target temperature of the strip is caused.