| Criteria layer | First-level indicators | Second-level indicators |
| PPP project social capital selection evaluation index system A | Financial Capability B1 | Financial strength C1 |
| Credit status C2 | ||
| Financing strength C3 | ||
| Financial risk control ability C4 | ||
| Technical Capabilities B2 | Construction technology level C5 | |
| Technical core equipment C6 | ||
| Qualification level C7 | ||
| Rationality of operation and maintenance plans C8 | ||
| Construction plans C9 | ||
| Management Capability B3 | Project management capabilities C10 | |
| Project operation and maintenance capabilities C11 | ||
| Risk response capabilities C12 | ||
| Resource integration capabilities C13 | ||
| Business scale C14 | ||
| Historical Project valuation B4 | Social influence C15 | |
| Similar project owner satisfaction C16 | ||
| Similar project construction experience C17 | ||
| Contract performance rate C18 | ||
| Professional service ability C19 |