In this paper, we analyzed two suspensions for micromachined comb drive tuning fork gyroscope to find which one is more suitable for higher performance gyroscope. Firstly, the simplified models of the two complex suspensions were presented to get the analytical expressions for the spring constant. Secondly, the modal analysis based on numerical finite element method was carried out to verify the simplified model and determine the final design of the suspension. Finally we fabricated the two gyroscopes in dissolved wafer process and took an actual test. The results showed that type1 suspension has lower spring constant than type2 under the same conditions. And the corresponding gyroscope having lower frequency has bigger scale factor and lower nonlinearity and better bias stability than the type2 one who has the higher frequency under the same test conditions.