This paper deals with the effective computation for nonlinear delay convection-reaction-diffusion equations. A new linearized compact multisplitting scheme is presented. Firstly, with an exponential transformation, we convert the equations into a class of delay reaction-diffusion equations. Then, the latter are discretized by compact difference method in space and multisplitting scheme in time. The error estimation of the computational scheme is derived under the sense of $L_1$-norm. To improve the accuracy in temporal direction, a Richardson extrapolation technique is utilized. Finally, some numerical examples are presented to illustrate the computational effectiveness of the scheme and the competitiveness with other numerical schemes.