The structure of formula student car is very significant to support any part of car and design for driver safety. Design of structure must consider of strength and weight and can be compound to perfectly any component about the problem of suspension system need to test for finding the real center of gravity of car for calculate and design to improve the suspension system of car . The structure of car must improve to support new suspension system . The design use Solidwork software for adjust the previous structure as a result to support the stability suspension system and can use TASE Auto Challenge 2015 competition as well.