The present paper investigated chemical reaction effect and hall current on electrically conducting rotating fluid with variable mass diffusion on an infinite vertical plate which is an isothermal has been analyzed. Using perturbation technique to find exact solution of nonlinear partial differential equation such as momentum, energy, and mass with boundary conditions. The result of velocity, temperature and concentration represent by graphically with different parameter. Combined analysis of Hall current, chemical reaction and rotating fluid plays very important role in science and technology like space research, fluid flow sensor, current sensor, geo physics etc.