Abstract: In order to understand the surgical effect of lateral fabellotibial suture（LFTS） and tibial plateau leveling osteotomy（TPLO）, the basic information and postoperative effects of 31 dogs with unilateral or bilateral cranial cruciate ligament rupture（CrCLR） who were treated with CrCLR in the Veterinary Teaching Hospital of China Agricultural University from November 2018 to September 2019 were investigated. The date of visit, breed, sex, age, weight, spayed or not, body condition score, surgical method of each case, intra-articular condition and postoperative outcome of the dogs were recorded, and at 6 weeks and 3 months after the operation telephone interviews were carried out. The results showed that among the 31 CrCLR cases investigated, the most common breed was the miniature poodle, accounting for 25.8%（8/31） of the total cases; middle-aged and elderly dogs（＞2 years old） accounting for 93.5%; 74.2% of the dogs were obese（body condition score of 7 to 9 on a 9-point scale）. The dogs who underwent LFTS were mainly smaller dogs（mean body weight was 11.68±9.31 kg）, and the patients who underwent TPLO were mainly heavier dogs（average body weight was 25.70±6.37 kg）. The number of cases with complete rupture of the cranial cruciate ligament（CrCL, 34 cases） was much larger than that with partial rupture（6 cases）, and the number of cases with complete rupture of CrCL in cases with bilateral CrCLR was significantly higher than that in cases with unilateral disease; the incidence of major postoperative complications was 7.1% in patients undergoing LFTS, and 8.3% in patients undergoing TPLO. Both surgical options had a good effect on improving the motor function of the affected limb. The results indicated that dogs with CrCLR had good prognosis after LFTS or TPLO surgery, and the motor function of the affected limbs could be significantly improved.