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Plant-specific Rac/Rop small GTPases, also known as Rop, belong to the Rho subfamily. Rac proteins can be divided into two types according to their C-terminal motifs: Type I Rac proteins have a typical CaaL motif at the C-terminal, whereas type II Rac proteins lack this motif but retain a cysteine-containing element for membrane anchoring. The <i>Rac</i> gene family participates in diverse signal transduction events, cytoskeleton morphogenesis, reactive oxygen species (ROS) production and hormone responses in plants as molecular switches. <i>S. album</i> is a popular semiparasitic plant that absorbs nutrients from the host plant through the haustoria to meet its own growth and development needs. Because the whole plant has a high use value, due to the high production value of its perfume oils, it is known as the “tree of gold”. Based on the full-length transcriptome data of <i>S. album</i>, nine <i>Rac</i> gene members were named <i>SaRac1-9</i>, and we analyzed their physicochemical properties. Evolutionary analysis showed that SaRac1-7, AtRac1-6, AtRac9 and AtRac11 and OsRac5, OsRacB and OsRacD belong to the typical plant type I Rac/Rop protein, while SaRac8-9, AtRac7, AtRac8, AtRac10 and OsRac1-4 belong to the type II Rac/ROP protein. Tissue-specific expression analysis showed that nine genes were expressed in roots, stems, leaves and haustoria, and <i>SaRac7</i>/<i>8</i>/<i>9</i> expression in stems, haustoria and roots was significantly higher than that in leaves. The expression levels of <i>SaRac1</i>, <i>SaRac4</i> and <i>SaRac6</i> in stems were very low, and the expression levels of <i>SaRac2</i> and <i>SaRac5</i> in roots and <i>SaRac2</i>/<i>3</i>/<i>7</i> in haustoria were very high, which indicated that these genes were closely related to the formation of <i>S. album</i> haustoria. To further analyze the function of <i>SaRac</i>, nine <i>Rac</i> genes in sandalwood were subjected to drought stress and hormone treatments. These results establish a preliminary foundation for the regulation of growth and development in <i>S. album</i> by <i>SaRac</i>.