Total factor productivity (TFP), also known as Solow's residual, is a measure of the share of production growth that cannot be explained by increases in inputs like capital and labor. It captures the impact of technical development, increases in production, and other unnoticed elements. To improve the productivity of total factors, Quang Ninh needs to innovate its growth model, fully exploit favorable natural conditions and natural resources, and implement green transformation and digital transformation to a circular economy, mobilizing maximum domestic and foreign capital, improving the quality of human resources, enhancing scientific applications and expanding international cooperation.