With lithium acetate and butyl titanate as lithium and titanium sources, and cetyltrimethylammonium bromide (CTAB) as the soft template, the sol-gel method is used to obtain CTAB-added lithium titanium by roasting. The compound (Li4Ti5O12) was pickled with hydrochloric acid to prepare a lithium titanium ion sieve (H4Ti5O12, HTO). The effects of crystal phase, morphology and time on the adsorption capacity of lithium titanium ion sieve were investigated by thermogravimetric analysis (TG-DTG), X-ray diffraction (XRD), scanning electron microscopy (SEM), contact angle and performance tests. Compared with the addition amount of CTAB, 0.1 g CTAB ionic sieve precursor has fewer impurities and pure crystal phase. The quasi-second-order kinetic correlation coefficient R2(0.997 24) of HTO is greater than that of first-order kinetic correlation coefficient R2(0.984 35), indicating that the adsorption process is consistent with chemisorption. The adsorption capacity of HTO in Li+ solution for 24 h reaches 24.44 mg/g, and after 8 times of adsorption and desorption, the adsorption capacity remains at 23.68 mg/g, only reduces by 3.1%. Therefore, HTO has good cyclic adsorption performance and stability, and has a broad market prospect.