The safety of construction workers has been a major issue because of the substantial number of accidents and fatalities caused by ignoring hazards. Notwithstanding all these attempts, not all the approaches adopted by the industry have effectively achieved the required results. Some strategies could not make substantial progress or help tackle the unique issues of construction safety performance. This demonstrates the complexities of maintaining safety within construction sites and the need for more personalised and sturdy remedies that can successfully handle distinct threats. Further research is needed to incorporate teamwork between workers to bolster safety performance. In answer to this demand, the current research paper presents Teamwork based Construction Safety Performance Index Appraisal Kit (C-SPI-AK), which was created utilising the fuzzy synthetic evaluation method to evaluate the construction work practices in different construction working environments to ensure the well-being of workers and the efficacy of safety protocols. The tool will help evaluate six major components, safety culture indicators (Cat1), Safety rules and behaviour indicators (Cat2), Safety practices and engagement indicators (Cat3), Safety communication and inspection indicators (Cat4), Management commitment indicators (Cat5) and Safety meetings and maintenance indicators (Cat6). Furthermore, construction safety performance index appraisal kit will bridge the gap between the conceptual research analysis and the practical implementation resulting in enhanced safety standards.