As we all know, the Land of Papua is one of the areas in Indonesia that has abundant natural resources. But apart from all that, the development of the Papua region actually seems slower than other regions. The provinces of Papua and West Papua live in poverty due to their abundant natural wealth. The paradox of the curse of natural resources seems to have found an answer on Cenderawasih Earth. For example, Freeport and LNG Tangguh , which if managed properly can make the Papuan people prosperous, but until now the Papuan people live in the shadow of endless poverty. The purpose of this study was to analyze the effect of Strategy Policy and Strategy Planning and Budgeting on the Effectiveness of LNG Tangguh Corporate Social Responsibility for the Welfare of the People of West Papua mediated by Good Corporate Governance. This study uses a descriptive and verification approach. The population in this study is the people of West Papua around the LNG Tangguh company, totaling 170 people. The sampling technique (sampling) used is a type of non-probability sampling, namely purposive sampling. In this study, researchers conducted two kinds of validity and reliability tests of research instruments. Testing the validity and reliability of the first stage was carried out using SPSS software version 25 as an initial stage and for the second stage testing with LISREL 8/80 software. Based on the research objectives, it can be concluded that some of the research results are as follows: there is a positive and significant effect of Strategy Policy on the Effectiveness of Corporate Social Responsibility, there is a positive and significant influence of Strategy Planning and Budgeting on the Effectiveness of Corporate Social Responsibility, there is a positive and significant influence Strategy Policy on Good Corporate Governance, there is a positive and significant effect of Strategy Planning and Budgeting on Good Corporate Governance, there is a positive and significant effect of Good Corporate Governance on the Effectiveness of Corporate Social Responsibility, there is a positive and significant effect of Strategy Policy on the Effectiveness of Good Mediated Corporate Social Responsibility Corporate Governance. there is a positive and significant effect of Strategy Planning and Budgeting on the Effectiveness of Corporate Social Responsibility mediated by Good Corporate Governance. The results of this study are new from the results of previous studies which can increase the influence of Strategy Planning and Budgeting on the Effectiveness of Corporate Social Responsibility. The results of this study can be input for the Central Government so that they can play an active role in implementing policies related to corporate social responsibility policies for the welfare of indigenous Papuans in the Tangguh Bintuni LNG mining area, West Papua. It is hoped that the involvement of all stakeholders, both at the regional and central levels, will be more intense considering that the results of the LNG Tangguh mining should be able to alleviate poverty in the Tangguh Bintuni LNG mining area in West Papua.