A full process leasing business management platform that achieves full process management of pre lease, during lease, post lease, and financial accounting: customer-centric, achieving centralized management of customer information such as tenants, guarantors, suppliers, and manufacturers. The functions include customer management, project approval, lease plan production, rent management, contract management, report management, including 1104 reports, fund management, financial accounting management, lease management, risk management, file management, mobile office, etc.