The purpose of this study to find out (1) the steps of continuous professional development (CPD) of teachers, (2) the methods and techniques of CPD, (3) the models of CPD, (4) thefinancing of CPD, and (5) the constraints of CPD. The research approach is qualitative while the type is phenomenological. The study was conducted in Demak Regency in 2019. Data collection techniques used questionnaires, interviews, and documentation. The research step follows the Miles and Huberman model. Analysis of data using qualitative research software NVivo 11 Plus. The results showed (1) the steps of CPD consist of need assessment, implementation, and evaluation, (2) the most widely used methods were education and training, lectures, simulations, discussions, and behavior modeling, (3) the models most widely used professional learning groups, (4) the biggest funding source from the personal of teachers and local government, and (5) the main constraints are in terms of time, funding, lack of programmability, and lack of assistance. The intensive CPD implementation has succeeded in improving the quality of education in Demak District. In order for CPD to improve more quality of education, it is suggested that several things (1) CPD steps need to be improved starting from the measurement of teacher needs to evaluation, (2) the methods, techniques, and models that are still rarely used should be tried to apply, (3) it needs to explore funding from the public, (4) minimize the main obstacles that arised, and (5) the need of operational policy from District Education Office of Demak.