This study aimed to determine the influence of variables in TPB (attitude toward behavior, perceived behavioral control, subjective norm), religiosity, knowledge, and risk perception to intention purchase of sharia mutual fund. The sample in this study was customer of Bank Sharia XYZ of 164 customers. The analysis applied in this study was Structural Equation Modeling-Partial Least Square. The result of this research showed that the independent variable had positive and significant influence to dependent variables attitude toward behavior and subjective norm. Religiosity and knowledge have no significant influence toward intention to purchase, while perceived behavioral control and risk perception had no significant influence with intention to purchases. The other result showed that religiosity had a positive significant influence to attitude toward behavior. The conclusion of this research shown that religiosity is the factor which influence attitude toward behavior, attitude toward behavior and subjective norm are the factors which influence intention purchase of sharia mutual fund. AbstrakPenelitian ini bertujuan untuk menganalisis pengaruh variabel TPB (sikap terhadap perilaku, kontrol perilaku persepsi, norma subjektif), religiusitas, pengetahuan, dan persepsi risiko terhadap minat nasabah membeli reksa dana syariah. Jumlah sampel dalam penelitian ini adalah 164 responden. Metode analisis yang digunakan dalam penelitian ini adalah Structural Equation Modeling-Partial Least Square. Hasil penelitian menunjukkan bahwa sikap terhadap perilaku dan norma subjektif berpengaruh positif dan signifikan terhadap minat beli nasabah, sedangkan kontrol perilaku dan persepsi risiko memiliki hasil tidak signifikan terhadap minat beli nasabah. Hasil lainnnya menunjukkan bahwa religiusitas memiliki pengaruh positif dan signifkan terhadap sikap terhadap perilaku. Kesimpulan dari penelitian ini adalah religiusitas merupakan faktor yang mempengaruhi sikap terhadap perilaku, sikap terhadap perilaku dan norma subjektif merupakan faktor yang mempengaruhi minat nasabah membeli reksa dana syariah. Kata kunci: minat, pengetahuan, religiusitas, persepsi risiko, TPB