The interaction between cucurbiturils(Q［7］,Q［8］) and the 2-amino-benzothiazole (g) was investigated by 1H NMR spectroscopy, electronic absorption spectroscopy and fluorescence spectroscopy. The results show that with 2＜pH＜9, using different spectrum methods was able to observe the interaction between the cucurbit［n］urils and the guest at pH between 2 and 9, Q［7］ interacts with the guest with a 1∶1 host∶guest ratio, and Q［8］ interacts with the guest with a 1∶2 host∶guest ratio. Also, the inclusion constant and the thermodynamic parameters of the interaction systems, such as the entropy and enthalpy of systems, were considered.