This paper investigates the thermocapillary migration of a self-rewetting droplet on an inclined surface using a phase field-based lattice Boltzmann method. The study explores the effects of the Marangoni number, surface wettability, and viscosity ratio on droplet migration. Key findings include: 1. **Marangoni Number**: As the Marangoni number increases, the droplet deforms and elongates more, with migration speed also increasing. 2. **Surface Wettability**: Droplets migrate towards regions of higher surface energy on hydrophilic surfaces and away from them on hydrophobic surfaces. Vortices inside the droplet form and change in response to the surface wettability and inclination angle. 3. **Viscosity Ratio**: The migration speed decreases with increasing viscosity ratio, while the droplet's elongation remains relatively unchanged. Vortices inside the droplet also change in number and position due to viscosity differences. The study validates the numerical approach by comparing results with previous work on normal fluids and confirms the effectiveness of the phase field LB method in handling fluid-surface interactions. The findings have implications for microfluidics, material synthesis, and integrated DNA analysis devices.This paper investigates the thermocapillary migration of a self-rewetting droplet on an inclined surface using a phase field-based lattice Boltzmann method. The study explores the effects of the Marangoni number, surface wettability, and viscosity ratio on droplet migration. Key findings include: 1. **Marangoni Number**: As the Marangoni number increases, the droplet deforms and elongates more, with migration speed also increasing. 2. **Surface Wettability**: Droplets migrate towards regions of higher surface energy on hydrophilic surfaces and away from them on hydrophobic surfaces. Vortices inside the droplet form and change in response to the surface wettability and inclination angle. 3. **Viscosity Ratio**: The migration speed decreases with increasing viscosity ratio, while the droplet's elongation remains relatively unchanged. Vortices inside the droplet also change in number and position due to viscosity differences. The study validates the numerical approach by comparing results with previous work on normal fluids and confirms the effectiveness of the phase field LB method in handling fluid-surface interactions. The findings have implications for microfluidics, material synthesis, and integrated DNA analysis devices.