Background and Aim: Spiritual intelligence encompasses a set of abilities and capacities that use spiritual resources to increase the well-being and adaptability among individuals. In recent years, along with the development of positive psychology, happiness has been the basic pivot of the studies conducted in this area. Due to importance of Spiritual intelligence and happiness, the present study amid to survey the Relationship between Spiritual intelligence and Happiness in Zanjan Nursing and Midwifery Students.
 
Materials and Methods: The present study is descriptive and co relational. This study aimed to assess the intelligence level of Nursing and Midwifery students of Zanjan University and its relationship with happiness. The participants were all selected based on random sampling.  The research was conducted via a questionnaire of Spiritual intelligence that consisted of 29 options and the Oxford happiness questionnaire consisting of 29 options with the likert scoring scale. The data was analyzed using SPSS software (version 18) and statistical tests at the significant level of p < 0.05.
 Results: The average Spiritual intelligence of the student was 17.42±121 (the lowest mean score was 43 and the highest mean score was 145). 83.4 percent of the students had good Spiritual intelligence, 14.5 percent of the students had an average Spiritual intelligence, and 1.8 percent of the students had low Spiritual intelligence. The average score of student happiness was 37.87±12.89. Using the one way ANOVA showed a significant relationship between the average of happiness score in different majors (p=0.006) and the result of the Chi-squared test showed that there was a significant relationship between happiness and Spiritual intelligence. (r=0.35 p < 0.0001).
 Conclusion: Spiritual intelligence, as the basis of a person's beliefs, plays a key role in various fields, especially the provision and promotion of mental health -happiness as an example of mental health. Therefore, attention to spiritual intelligence can help students in their understanding of the value and meaning of life and their problem solving.