Despite government interventions on promoting improved post-harvest storage technology among smallholder farmers in the country, the access and adoption of the technologies remain one of the most problematic issues throughout the post-harvest chain resulting in post-harvest losses. In complementing government effort, the 'heltevas' organisation in 2016 introduced the Grain Post-harvest Loss Prevention (GPLP) project in the Mvomero district to promote the adoption of improved post-harvest storage technology. This paper, therefore, examined the typology and adoption level of post-harvest storage technology for cereal crops among smallholder farmers taking the Mvomero district as a case. A sample of 262 participants was used. The study used a cross-sectional design. Data were collected from primary and secondary sources. Descriptive statistics and regression analysis were used to analyze quantitative data, where a multi-collinearity test was employed to measure the correlation between variables. Findings from the study indicated that the GPLP project disseminated knowledge on improved post-harvest storage technologies, resulting in farmers' persuasion that influenced the decision to adopt and implement the diffused technologies. Diverse types of enhanced post-harvest storage technology innovations were disseminated to farmers which include;Perdue Improved Crop Storage (PICS), metal silos, Agro Z, and super grain. To a large extent, farmers adopted the diffuse technologies.