Postpartum depression is a maternal mental health problem that must be treated

immediately because it will have a negative impact on the mental health of

mothers and babies. Mindfulness-based cognitive behavior therapy (MCBT) and

Assertiveness Training are effective short-term psychological interventions that

can overcome psychological symptoms such as postpartum depression. The

purpose of this study was to determine the effect of Mindfullness based on

Cognitive Behavior Therapy and Assertiveness Tarining on reducing symptoms of

postpartum depression. The research design used a quasi-experimental method

with a pretest-posttest non-equivalent control group design. The study sample

amounted to 76 which were divided into two groups, namely the intervention

group (38 people) and the control group (38 people). The study was conducted at

the Dau Health Center, East Java in September-November 2022 using a research

instrument in the form of an Edinburg postpartum depression scale (EPDS)

questionnaire. The statistical tests used are the Wilcoxon and Mann-Whitney

tests. The results showed that there was a statistically significant difference,

namely a decrease in depressive symptoms given by MCBT and AT therapy

compared to the provision of deep breath relaxation techniques therapy with

value of p = 0.000. Psychological therapy that combines MCBT and AT is more

effective against reducing symptoms of postpartum depression.