The invention discloses a 500kV alternating-current linear angle tower electric field simulation system. The 500kV alternating-current linear angle tower electric field simulation system comprises a corner rod tower, an insulator, an armor clamp model library, a conducting-wire model establishing unit, a finite element solving unit and a post-processing unit, which are sequentially connected with one another; the angle rod tower, the insulator and the armor clamp model library are respectively an element library formed after modeling a linear corner tower model; the conducting-wire model establishing unit is used for realizing parameter setting of a conducting wire; the definite element solving unit is used for carrying out the definite element analysis by calling ANSYS simulation software; the post-processing unit is used for processing a calculation result of a definite element solving system and acquiring a physical quantity needing to be displayed. By adopting the 500kV alternating-current linear angle tower electric field simulation system, the environmental protection expense on the aspect of a 500kV transmission line project electric field is reduced, a parameter structure can be assigned in a self-defining manner in the parameter modeling process, so that the distribution situation of a power transmission rod tower electric field under the same working condition and different structures or arrangement ways can be calculated, and data evidence can be provided for improving the maximum field intensity on the surface of the conducting wire and an armor clamp.