To Compare the Efficacy and Safety of INS068 and Insulin Glargine in Subjects With Type 2 Diabetes Mellitus Treated With Basal Insulin.

Inclusion Criteria: 1. Diagnosed with type 2 diabetes≥ 6 months; 2. HbA1c 7.0% \~ 10.0% (Both inclusive) at screening; 3. Treated with Basal insulin ≥10U /day for at least 8 weeks prior to screening. Exclusion Criteria: 1. Known or suspected allergy or intolerance to investigational medicinal products or related products. 2. Hospitalization for diabetic ketoacidosis or hyperglycemic hyperosmolar state within the previous 6 months. 3. Potentially unstable diabetic retinopathy or macular degeneration that requires treatment (e.g., laser, surgical, or injectable medications) within the previous 6 months. 4. Received premixed insulin, mealtime insulin, or insulin pump therapy within 8 weeks prior to screening. 5. Participated in clinical trials of any approved or unapproved investigational drug/treatment within the previous 1 month or 5 half-life period, whichever is longer, prior to screening. 6. Women who are pregnant, breastfeeding or planning to conceive, or women of childbearing potential are reluctant to use appropriate contraception during the trial and for at least 14 days after the last dose of the investigational medicinal drug; Anycircumstances that the investigator judges might not be suitable to participate in the trial..