Abstract: The electron residual energy in different plasma of low Z gas target driven by ultra-short linear polarized laser with different parameters, is analytically calculated and simulated by cloud-in-cell (CIC) method. Considering that plasma produced by linear polarized light in strong field has low temperature and high ionization degree, instead of normal equation of calculating inverse bremsstrahlung rate, zero-temperature approximation is adopted. In CIC simulation, longitudinal electric field effect in interaction of strong field with gas target is also included. The results of theoretical calculation of the interaction between linear polarized laser and gas targets of He, Ne as well as the corresponding conclusions are presented.