This paper investigates the dynamics of particles around a charged black hole surrounded by a cloud of strings and a quintessence field in the framework of Rastall gravity. The authors calculate and analyze various physical quantities such as the effective potential, angular momentum, particle energy, horizon radius, inner stable circular orbit, photon sphere radius, quasi-periodic oscillations, and effective force. They explore the effects of the charge of the black hole, the Rastall parameter, the cloud of strings parameter, and the quintessence parameter on these quantities. The study finds that the horizon radius increases with the charge of the black hole and the quintessence parameter, while it decreases with the cloud of strings parameter. The inner stable circular orbit radius and the photon sphere radius are also influenced by these parameters. The paper further examines the quasi-periodic oscillations and the effective force, providing insights into the behavior of massive and massless particles in this spacetime. The results highlight the unique characteristics of Rastall gravity in the presence of charged black holes and the surrounding fields.This paper investigates the dynamics of particles around a charged black hole surrounded by a cloud of strings and a quintessence field in the framework of Rastall gravity. The authors calculate and analyze various physical quantities such as the effective potential, angular momentum, particle energy, horizon radius, inner stable circular orbit, photon sphere radius, quasi-periodic oscillations, and effective force. They explore the effects of the charge of the black hole, the Rastall parameter, the cloud of strings parameter, and the quintessence parameter on these quantities. The study finds that the horizon radius increases with the charge of the black hole and the quintessence parameter, while it decreases with the cloud of strings parameter. The inner stable circular orbit radius and the photon sphere radius are also influenced by these parameters. The paper further examines the quasi-periodic oscillations and the effective force, providing insights into the behavior of massive and massless particles in this spacetime. The results highlight the unique characteristics of Rastall gravity in the presence of charged black holes and the surrounding fields.