  In this work, we study the line and loop operators in three-dimensional
${\mathcal N}=2$ fishnet theories in detail. We construct the straight line and
circular loop operators which are at least classically half-BPS. We develop a
new regularization scheme at frame $-1$ which is suitable for the study of the
fermionic BPS loops in general super-Chern-Simons-matter theories. We
initialize the perturbative computation for the vacuum expectation values of
the circular BPS loop operators based on this scheme. We construct the cusped
line operators as well, and compute the vacuum expectation values of these
cusped line operators up to two-loop order. We find that the universal cusp
anomalous dimension vanishes, if we put aside the fact that the generalized
potential has a double pole in the $1/\epsilon$ expansion.
