Аннотация:Dynamical parallaxes of visual binary stars with reliable orbits selected from the Multiple Star Catalogue (Tokovinin 1997) are compared with Hipparcos parallaxes. Data on 141 objects with Hipparcos parallax errors not exceeding 2.5 mas are divided into 3 groups according to the orbit quality and reliability of Hipparcos double-star solutions. These groups are: I. interferometric orbits (from speckle- or long-baseline interferometry); II. orbits from visual measurements (with ``quality'' not lower 3, see Worley & Heintz 1983); and III. unreliable Hipparcos double star solutions or suspected duplicity (cf. field H61 in the Hipparcos and Tycho catalogues, 1997). Dynamical parallaxes are calculated with the use of a total system mass taking into account all known subsystems from Tokovinin (1997). Good agreement between dynamical and Hipparcos parallaxes is found for all distant systems (< 15 mas), but for intermediate-distance systems (from 15 to 30 mas) in some cases Hipparcos parallaxes have large errors caused by undetected short-period binaries. Hipparcos parallaxes in the third group do not show larger deviations from dynamical ones than for groups I and II. In 5 visual triples the parallaxes of the distant physical companions and of the orbital pairs are in good mutual agreement. So, we may conclude that Hipparcos parallaxes of multiple stars are of good quality if they do not contain close subsystems with periods of the order of 1 year.