Abstract: We consider the properties of solutions of reaction-diffusion system ut－Δu=∫Ωuα1dx∫Ωvβ1dx,vt－Δv=∫Ωuα2dx∫Ωvβ2dx, and obtain the uniform blow-up profiles of solutions, and the estimates of boundary layer.

Key words: nonlinear parabolic system, nonlocal source, blow-up, boundary layer