Taking orchid planting industry in Guangdong-Taiwan agricultural cooperative experimental area in Shaoguan, Guangdong province as an example, from the perspective of farmers, seven potential variables of external factors under three dimensions were constructed. Based on the questionnaire survey data, the influencing factors of the diffusion effect of Taiwan's agricultural (orchid) technology (potential variable of internal factor) were analyzed through the structural equation model. The results show that the factors, such as the characteristics of farmers' social networks and subjective norms, farmers' cognition to Taiwan's agriculture, characteristics of Taiwan agriculture, characteristics of Taiwan agricultural technical service and basic conditions, have significant positive effects on the diffusion effect of orchid technology, and the corresponding hypotheses pass the test. The factors such as the characteristics of farmers' entrepreneurship and the policy environment do not have significant effects on the diffusion effect of orchid technology, and the corresponding hypotheses do not pass the test. The special regional culture in the experimental area promotes the diffusion of orchid technology; however, it also brings some negative effects. According to the influencing factors of orchid technology diffusion and the actual situation, reasonable countermeasures of orchid industry should be formulated in the experimental area.