This study examines 43 policy documents on science and technology achievement transformation issued by Tianjin Municipality, analyzing them through a two-dimensional framework of "policy tools - policy objectives" to dissect structural characteristics and optimization pathways. Findings show: (1) Imbalanced policy instrument structure: Supply-side (49.74%) and environmental instruments (46.56%) dominate, while demand-side instruments account for merely 3.70%, resulting in weak market pull; (2) Overemphasis on technology transfer at the expense of industrialization: Policies disproportionately focus on technology transfer and application (69.31%), with weak support for industrialization stage (4.76%); (3) Insufficient adaptability between policy tools and transformation stages: The R&D phase neglects quality enhancement (“quality characteristics of outcomes” instruments: 7.14%), while industrialization relies excessively on short-term “funding support” without long-term fiscal and taxation mechanisms; (4) Absence of implementation rules weakens policy effectiveness. Recommendations include strengthening demand-side instruments, balancing three-stage policy allocation, establishing a dynamic “stage instrument” adaptation mechanism, and refining supporting rules to improve policy effectiveness.