The migration of a neutrally buoyant particle in a shear flow with thermal convection is studied with the lattice Boltzmann method. Due to the effect of thermal convection, the equilibrium position of the particle is different qualitatively from the isothermal case. The dependence of the equilibrium position of the particle on the Grashof number is not monotonic, and four driving forces, which affect the migration of the particle, are investigated. Since the migration of the particle is affected by both forced convection and thermal convection, with the Reynolds number increasing, forced convection becomes stronger, which weakens the effect of thermal convection, as a result, the equilibrium position of the particle is closer to the isothermal case. (C) 2019 Elsevier Ltd. All rights reserved.