The objectives of this study were to 1) design a participatory FARMBOOK APPLICATION technology development model 2) study basic personal and economic characteristics of farmers 3) study satisfaction of farmers regarding to the FARMBOOK APPLICATION technology development model in Phraya Banlue Sub-district, Lat Bua Luang District, Phra Nakhon Si Ayutthaya Province. The sample group was divided into 2 groups: A group of 20 people involved in designing the FARMBOOK APPLICATION technology development model and the group that responded to the satisfaction questionnaire 166 people. The instruments used were: Focus Group, Brainstorming, Closed-open-ended questionnaire. Statistics used in data analysis include frequency, percentage, mean, and standard deviation.
         The research results found that 1) The FARMBOOK APPLICATION technology development model with participation of farmers got a model that shows the relationship of 3 main components: (1) Features of application (2) Additional menu of use (3) Integration of related agencies. 2) Basic personal and economic characteristics found that the majority of farmers were male, average age of 56.40 years, most graduated from primary school. The average number of household members was 1-4 people and they have their own land with an average agricultural area of 15.27 rai. 3) Farmers were overall satisfied with the FARMBOOK APPLICATION technology development model at high level, with an average of 4.48.